简单而又艰难的选择
<p> <span word="along">along</span> <span word="with">with</span> <span word="the">the</span> <span word="rapid">rapid</span> <span word="step">step</span> <span word="of">of</span> <span word="science">science</span> <span word="development">development</span>, <span word="men">men</span> <span word="have">have</span> <span word="got">got</span> <span word="more">more</span> <span word="and">and</span> <span word="more">more</span> <span word="achievements">achievements</span>. <span word="especially">especially</span> <span word="in">in</span> <span word="biological">biological</span> <span word="field">field</span>, <span word="scientists">scientists</span> <span word="are">are</span> <span word="creating">creating</span> <span word="miracles">miracles</span> <span word="every">every</span> <span word="minute">minute</span>. <span word="in">in</span> <span word="recent">recent</span> <span word="years">years</span>, <span word="they">they</span> <span word="are">are</span> <span word="decoded">decoded</span> <span word="the">the</span> <span word="gene">gene</span> <span word="code">code</span> <span word="of">of</span> <span word="human">human</span> <span word="being">being</span>. <span word="people">people</span> <span word="all">all</span> <span word="over">over</span> <span word="the">the</span> <span word="world">world</span> <span word="are">are</span> <span word="astonished">astonished</span> <span word="and">and</span> <span word="excited">excited</span>. <span word="however">however</span>, <span word="at">at</span> <span word="the">the</span> <span word="same">same</span> <span word="time">time</span>, <span word="it">it</span> <span word="evokes">evokes</span> <span word="many">many</span> <span word="things">things</span> <span word="which">which</span> <span word="we">we</span> <span word="should">should</span> <span word="and">and</span> <span word="must">must</span> <span word="think">think</span> <span word="carefully">carefully</span>. <span word="whats">whats</span> <span word="gene">gene</span>? <span word="i">i</span> <span word="think">think</span> <span word="we">we</span> <span word="should">should</span> <span word="know">know</span> <span word="sometimes">sometimes</span> <span word="about">about</span> <span word="dna">dna</span> <span word="first">first</span>. <span word="dna">dna</span> <span word="is">is</span> <span word="short">short</span> <span word="for">for</span> <span word="deoxyribonucleic">deoxyribonucleic</span> <span word="nucleic">nucleic</span> <span word="acid">acid</span>. <span word="its">its</span> <span word="the">the</span> <span word="most">most</span> <span word="important">important</span> <span word="heredity">heredity</span> <span word="substance">substance</span> <span word="in">in</span> <span word="our">our</span> <span word="bodies">bodies</span>, <span word="which">which</span> <span word="almost">almost</span> <span word="decides">decides</span> <span word="all">all</span> <span word="the">the</span> <span word="shape">shape</span> <span word="and">and</span> <span word="properties">properties</span>.</p><p> <span word="on">on</span> <span word="it">it</span> <span word="are">are</span> <span word="there">there</span> <span word="thousands">thousands</span> <span word="of">of</span> <span word="genes">genes</span> <span word="arranged">arranged</span> <span word="in">in</span> <span word="sequence">sequence</span>. <span word="each">each</span> <span word="of">of</span> <span word="them">them</span> <span word="carries">carries</span> <span word="a">a</span> <span word="genetic">genetic</span> <span word="message">message</span> <span word="that">that</span> <span word="decides">decides</span> <span word="your">your</span> <span word="appearance">appearance</span>, <span word="intelligence">intelligence</span> <span word="or">or</span> <span word="any">any</span> <span word="other">other</span> <span word="character">character</span>. <span word="so">so</span> <span word="theres">theres</span> <span word="no">no</span> <span word="doubt">doubt</span> <span word="that">that</span> <span word="decoding">decoding</span> <span word="the">the</span> <span word="gene">gene</span> <span word="code">code</span> <span word="will">will</span> <span word="do">do</span> <span word="an">an</span> <span word="great">great</span> <span word="effect">effect</span> <span word="on">on</span> <span word="us">us</span> <span word="and">and</span> <span word="has">has</span> <span word="a">a</span> <span word="profound">profound</span> <span word="and">and</span> <span word="far">far</span>-<span word="reaching">reaching</span> <span word="meaning">meaning</span>. <span word="this">this</span> <span word="scientific">scientific</span> <span word="fruit">fruit</span> <span word="would">would</span> <span word="absolutely">absolutely</span> <span word="bring">bring</span> <span word="some">some</span> <span word="advantages">advantages</span>. <span word="if">if</span> <span word="it">it</span> <span word="was">was</span> <span word="in">in</span> <span word="use">use</span>, <span word="agriculture">agriculture</span> <span word="would">would</span> <span word="benefit">benefit</span> <span word="from">from</span> <span word="it">it</span> <span word="a">a</span> <span word="lot">lot</span>. <span word="the">the</span> <span word="output">output</span> <span word="of">of</span> <span word="crop">crop</span> <span word="would">would</span> <span word="increase">increase</span>. <span word="they">they</span> <span word="could">could</span> <span word="resist">resist</span> <span word="all">all</span> <span word="kinds">kinds</span> <span word="of">of</span> <span word="diseases">diseases</span> <span word="and">and</span> <span word="have">have</span> <span word="a">a</span> <span word="strong">strong</span> <span word="ability">ability</span> <span word="of">of</span> <span word="disaster">disaster</span>-<span word="proteeting">proteeting</span>. <span word="animals">animals</span> <span word="may">may</span> <span word="be">be</span> <span word="safe">safe</span> <span word="because">because</span> <span word="scientists">scientists</span> <span word="can">can</span> <span word="continue">continue</span> <span word="a">a</span> <span word="plant">plant</span> <span word="by">by</span> <span word="genetic">genetic</span> <span word="optimization">optimization</span> <span word="or">or</span> <span word="cloning">cloning</span> <span word="when">when</span> <span word="it">it</span> <span word="is">is</span> <span word="in">in</span> <span word="danger">danger</span>. <span word="for">for</span> <span word="humans">humans</span>, <span word="it">it</span> <span word="will">will</span> <span word="contribute">contribute</span> <span word="to">to</span> <span word="medicine">medicine</span>. <span word="hereditary">hereditary</span> <span word="diseases">diseases</span> <span word="reduces">reduces</span> <span word="a">a</span> <span word="lot">lot</span>. <span word="many">many</span> <span word="incurable">incurable</span> <span word="diseases">diseases</span> <span word="can">can</span> <span word="be">be</span> <span word="treated">treated</span>. <span word="we">we</span> <span word="will">will</span> <span word="enjoy">enjoy</span> <span word="our">our</span> <span word="lives">lives</span> <span word="without">without</span> <span word="pain">pain</span>. <span word="thus">thus</span> <span word="we">we</span> <span word="live">live</span> <span word="longer">longer</span> <span word="naturally">naturally</span>. <span word="then">then</span> <span word="the">the</span> <span word="population">population</span> <span word="of">of</span> <span word="the">the</span> <span word="earth">earth</span> <span word="increases">increases</span> <span word="rapidly">rapidly</span>. <span word="this">this</span> <span word="would">would</span> <span word="cause">cause</span> <span word="the">the</span> <span word="danger">danger</span> <span word="of">of</span> <span word="resource">resource</span>. <span word="in">in</span> <span word="nowadays">nowadays</span>, <span word="freshwater">freshwater</span>, <span word="coal">coal</span>, <span word="petroleum">petroleum</span> <span word="are">are</span> <span word="not">not</span> <span word="enough">enough</span> <span word="yet">yet</span>. <span word="how">how</span> <span word="does">does</span> <span word="our">our</span> <span word="fragile">fragile</span> <span word="planet">planet</span> <span word="under">under</span> <span word="take">take</span> <span word="such">such</span> <span word="a">a</span> <span word="great">great</span> <span word="need">need</span>? <span word="at">at</span> <span word="that">that</span> <span word="time">time</span>, <span word="a">a</span> <span word="good">good</span> <span word="many">many</span> <span word="people">people</span> <span word="will">will</span> <span word="suffer">suffer</span> <span word="poverty">poverty</span>, <span word="starvation">starvation</span>, <span word="diseases">diseases</span>, <span word="etc">etc</span>. <span word="it">it</span> <span word="could">could</span> <span word="even">even</span> <span word="cause">cause</span> <span word="the">the</span> <span word="third">third</span> <span word="world">world</span>-<span word="war">war</span>. <span word="in">in</span> <span word="addition">addition</span> <span word="to">to</span> <span word="the">the</span> <span word="war">war</span>, <span word="were">were</span> <span word="faced">faced</span> <span word="many">many</span> <span word="other">other</span> <span word="problems">problems</span>. <span word="the">the</span> <span word="simplest">simplest</span> <span word="thing">thing</span> <span word="is">is</span> <span word="that">that</span> <span word="how">how</span> <span word="the">the</span> <span word="target">target</span> <span word="distribute">distribute</span>. <span word="who">who</span> <span word="can">can</span> <span word="decide">decide</span> <span word="it">it</span>? <span word="is">is</span> <span word="the">the</span> <span word="achievement">achievement</span> <span word="first">first</span> <span word="used">used</span> <span word="on">on</span> <span word="scientists">scientists</span> <span word="or">or</span> <span word="stars">stars</span>? <span word="is">is</span> <span word="it">it</span> <span word="appreciated">appreciated</span> <span word="by">by</span> <span word="nobles">nobles</span> <span word="or">or</span> <span word="tested">tested</span> <span word="on">on</span> <span word="civilians">civilians</span>? <span word="so">so</span> <span word="simple">simple</span> <span word="a">a</span> <span word="thing">thing</span> <span word="is">is</span> <span word="so">so</span> <span word="hard">hard</span> <span word="to">to</span> <span word="solve">solve</span>. <span word="if">if</span> <span word="we">we</span> <span word="were">were</span> <span word="to">to</span> <span word="reform">reform</span> <span word="our">our</span> <span word="genes">genes</span> <span word="for">for</span> <span word="same">same</span> <span word="reason">reason</span>, <span word="it">it</span> <span word="might">might</span> <span word="cause">cause</span> <span word="the">the</span> <span word="disorder">disorder</span> <span word="of">of</span>. <span word="it">it</span> <span word="would">would</span> <span word="lead">lead</span> <span word="to">to</span> <span word="serious">serious</span> <span word="aftereffects">aftereffects</span>. <span word="for">for</span> <span word="example">example</span>, <span word="some">some</span> <span word="new">new</span> <span word="diseases">diseases</span> <span word="will">will</span> <span word="come">come</span> <span word="and">and</span> <span word="they">they</span> <span word="may">may</span> <span word="be">be</span> <span word="incurable">incurable</span> <span word="as">as</span> <span word="cancer">cancer</span>. <span word="nobody">nobody</span> <span word="can">can</span> <span word="control">control</span> <span word="at">at</span> <span word="that">that</span> <span word="time">time</span>. <span word="contemporary">contemporary</span> <span word="society">society</span> <span word="has">has</span> <span word="many">many</span> <span word="kinds">kinds</span> <span word="of">of</span> <span word="discrimination">discrimination</span>. <span word="discrimination">discrimination</span> <span word="of">of</span> <span word="religion">religion</span> <span word="belief">belief</span>, <span word="ethnic">ethnic</span>, <span word="or">or</span> <span word="is">is</span> <span word="harmful">harmful</span> <span word="to">to</span> <span word="the">the</span> <span word="liberty">liberty</span> <span word="of">of</span> <span word="the">the</span> <span word="world">world</span>. <span word="imagine">imagine</span> <span word="that">that</span> <span word="if">if</span> <span word="you">you</span> <span word="were">were</span> <span word="a">a</span> <span word="manager">manager</span> <span word="of">of</span> <span word="a">a</span> <span word="company">company</span>, <span word="and">and</span> <span word="you">you</span> <span word="were">were</span> <span word="choosing">choosing</span> <span word="an">an</span> <span word="assistant">assistant</span>, <span word="from">from</span> <span word="a">a</span> <span word="crowd">crowd</span> <span word="of">of</span> <span word="people">people</span>. <span word="you">you</span> <span word="master">master</span> <span word="everyones">everyones</span> <span word="genes">genes</span>.</p>
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