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【多选题】
关于基因重叠，下列说法正确的是( )。A.
即同一段DNA片段能够编码2种甚至3种蛋白质分子
B.
线粒体和质粒DNA也有基因重叠现象
C.
基因重叠使较小的基因组能够携带较多的遗传信息
D.
只有病毒基因组有基因重叠现象
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【简答题】植原体引起病害的主要症状表现为黄化、 、 、花变叶及花、叶芽变小。
【简答题】课后题12猴子摘桃
【简答题】-You’ve never seen dinosaur eggs, have you ? --_____. How I wish to visit the Dinosaur World. A、Yes, I have B、No, I haven’t C、Certainly, I have D、Of course, I haven’t
【单选题】He has fully _______ from the virus.
A.
recover
B.
recovered
C.
recovery
D.
recovering
【单选题】听力原文：M: I wish I knew how to swim． W: Why not sign up for the lessons offered by the Physical Education Department? Q: What does the woman suggest? (13)
A.
She will teach him how to swim.
B.
He needs to get physical examinations.
C.
She will help him make the signs.
D.
He should take swimming lessons.
【简答题】I am 15. Now I’m studying English in London. I want to invent a language machine that can help me understand as many languages as possible. Marie, France Aug. 15, 2009 I am 13. I dream of going to...
【单选题】13 How I wish I ____ to repair the watch! I only made it worse
A.
had tried
B.
hadn't tried
C.
have tried
D.
didn't try
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