职称英语卫生类考试考前每日一练(17)
<p> 职称英语卫生类考试考前每日一练</p><p> 完形填空</p><p> 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案，涂在答题卡相应的位置上。</p><p> <span word="New">New</span> <span word="Technique">Technique</span> <span word="Promises">Promises</span> <span word="Earlier">Earlier</span> <span word="Cancer">Cancer</span> <span word="Detection">Detection</span></p><p> <span word="A">A</span> <span word="new">new</span> <span word="technique">technique</span> <span word="could">could</span> <span word="revolutionize">revolutionize</span> <span word="the">the</span> <span word="early">early</span> <span word="detection">detection</span> <span word="of">of</span> <span word="cancer">cancer</span>, <span word="giving">giving</span> <span word="sufferers">sufferers</span> <span word="a">a</span> <span word="greater">greater</span> <span word="chance">chance</span> <span word="of">of</span> <span word="beating">beating</span> <span word="the">the</span> <span word="disease">disease</span>, <span word="American">American</span> <span word="scientists">scientists</span> <span word="said">said</span>. <span word="Researchers">Researchers</span> <span word="at">at</span> <span word="the">the</span> <span word="Massa">Massa</span>-<span word="chusetts">chusetts</span> <span word="Institute">Institute</span> <span word="of">of</span> <span word="Technology">Technology</span> <span word="have">have</span> <span word="devised">devised</span> <span word="a">a</span> <span word="novel">novel</span> <span word="method">method</span> <span word="of">of</span> 51 <span word="changes">changes</span> <span word="in">in</span> <span word="the">the</span> <span word="nucle">nucle</span>-<span word="us">us</span> <span word="of">of</span> <span word="cells">cells</span> <span word="in">in</span> <span word="the">the</span> <span word="earliest">earliest</span> <span word="states">states</span> <span word="of">of</span> <span word="the">the</span> <span word="disease">disease</span>. <span word="More">More</span> <span word="than">than</span> 85 <span word="percent">percent</span> <span word="of">of</span> <span word="all">all</span> <span word="cancers">cancers</span> <span word="origi">origi</span>-<span word="nate">nate</span> <span word="in">in</span> <span word="the">the</span> <span word="epithelium">epithelium</span> <span word="that">that</span> <span word="lines">lines</span> <span word="the">the</span> <span word="internal">internal</span> <span word="surfaces">surfaces</span> <span word="of">of</span> <span word="organs">organs</span> 52 <span word="the">the</span> <span word="body">body</span>. <span word="Al">Al</span>-<span word="though">though</span> <span word="these">these</span> <span word="are">are</span> <span word="treatable">treatable</span> 53 <span word="they">they</span> <span word="are">are</span> <span word="diagnosed">diagnosed</span> <span word="in">in</span> <span word="one">one</span> <span word="of">of</span> <span word="the">the</span> <span word="preventable">preventable</span> <span word="stages">stages</span>, <span word="early">early</span> <span word="body">body</span> <span word="damages">damages</span> <span word="are">are</span> <span word="almost">almost</span> 54 <span word="to">to</span> <span word="detect">detect</span>, <span word="said">said</span> <span word="scientist">scientist</span> <span word="Feld">Feld</span>. <span word="We">We</span> <span word="present">present</span> <span word="a">a</span> <span word="new">new</span> <span word="optical">optical</span>-<span word="probe">probe</span> <span word="technique">technique</span> <span word="based">based</span> <span word="on">on</span> <span word="light">light</span>-<span word="scattering">scattering</span> <span word="spectroscopy">spectroscopy</span> <span word="that">that</span> <span word="is">is</span> <span word="a">a</span>-<span word="ble">ble</span> 55 <span word="detect">detect</span> <span word="pre">pre</span>-<span word="cancerous">cancerous</span> <span word="and">and</span> <span word="early">early</span> <span word="cancerous">cancerous</span> <span word="cells">cells</span> <span word="in">in</span> <span word="cell">cell</span>-<span word="rich">rich</span> <span word="epithelia">epithelia</span>, <span word="he">he</span> <span word="added">added</span> <span word="in">in</span> <span word="a">a</span> <span word="statement">statement</span>.</p><p> <span word="The">The</span> <span word="new">new</span> <span word="technique">technique</span> <span word="relies">relies</span> <span word="on">on</span> <span word="the">the</span> <span word="fact">fact</span> 56 <span word="cell">cell</span> <span word="nuclei">nuclei</span> <span word="change">change</span> <span word="in">in</span> <span word="the">the</span> <span word="early">early</span> <span word="stages">stages</span> <span word="of">of</span> <span word="can">can</span>-<span word="cer">cer</span> <span word="and">and</span> <span word="the">the</span> <span word="differences">differences</span> <span word="scatter">scatter</span> <span word="light">light</span> <span word="in">in</span> <span word="a">a</span> <span word="characteristic">characteristic</span> <span word="way">way</span>. <span word="Until">Until</span> <span word="now">now</span> <span word="the">the</span> <span word="changes">changes</span> <span word="were">were</span> <span word="only">only</span> <span word="de">de</span>-<span word="tectable">tectable</span> 57 <span word="a">a</span> <span word="biopsy">biopsy</span> <span word="was">was</span> <span word="taken">taken</span>, <span word="the">the</span> <span word="scientists">scientists</span> <span word="said">said</span>. <span word="The">The</span> <span word="new">new</span> <span word="technique">technique</span>, 58 <span word="in">in</span> <span word="the">the</span> <span word="Sd">Sd</span>-<span word="ence">ence</span> <span word="journal">journal</span> <span word="Nature">Nature</span> , <span word="can">can</span> <span word="be">be</span> <span word="used">used</span> <span word="in">in</span> <span word="conjunction">conjunction</span> <span word="with">with</span> <span word="a">a</span> <span word="routine">routine</span> <span word="cancer">cancer</span> <span word="screening">screening</span> <span word="and">and</span> <span word="surveil">surveil</span>-<span word="lance">lance</span> <span word="technique">technique</span> <span word="which">which</span> <span word="uses">uses</span> <span word="an">an</span> <span word="endoscope">endoscope</span> <span word="a">a</span> <span word="flexible">flexible</span> <span word="optical">optical</span> <span word="probe">probe</span> 59 <span word="with">with</span> <span word="cam">cam</span>-<span word="eras">eras</span> <span word="which">which</span> <span word="is">is</span> <span word="inserted">inserted</span> <span word="into">into</span> <span word="a">a</span> <span word="cavityin">cavityin</span> <span word="the">the</span> <span word="bodyto">bodyto</span> <span word="check">check</span> 60 <span word="cancers">cancers</span>.</p>
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