admins 发表于 2021-8-18 22:31:26

2020-2021学年人教版七年级上册生物课堂小测 3.2.1种子的萌发

※题型：单选题※知识点：单选题※试题难度：较易<br>实验表明,种子萌发需要的外部条件是(&nbsp;&nbsp;&nbsp;)<br>a适量的水&nbsp;&nbsp;&nbsp;b适宜的温度&nbsp;&nbsp;&nbsp;c充足的空气&nbsp;&nbsp;&nbsp;d光照A.abd&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.abc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.acd&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.bcd<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/aadc5f3023aa44e7b58df9ac5032f7df/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/97ffb417ce2d45a3aab2f3414235e652/D0C7967B3B0EAE3818C48A7ECD79E380.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>将大米播在田里,是长不出幼苗的,起主要原因是(&nbsp;)<br>A.胚乳被破坏&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.胚被破坏&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.种皮被破坏&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.大米被水泡<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2f030e0104b841c7aef9191d67bfe9b4/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f2b08996209643638dc42a93ba3cb1b9/0970E12D6147B664FC48026359DA392C.png"><br><br>
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