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【单选题】
Finally, put another slice of bread ______ the top. [ ]A.
in
B.
on
C.
over
D.
of
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反馈参考答案：
举一反三
【判断题】相互易位杂合体会产生败育的花粉,其原因是在性母细胞减数分裂的后期 I 的相邻式分离,会形成和倒位杂合体相同的重复 - 缺失染色体。A. 错 B. 对
A.
正确
B.
错误
【单选题】— It is unwise for some people to drive and talk on a cell phone. —_______. It’s very dangerous.
A.
I couldn’t agree more
B.
Not really
C.
Good idea
D.
That’s great
【单选题】男性，30岁。于8月2日突发寒战，高热，体温39～40℃，剧烈胸痛，呼吸急促，咳嗽，血性泡沫痰。查体：两肺可闻及散布湿性啰音，胸片呈支气管肺炎改变。病人于发病前1周曾到过云南西部狩猎。本病的传染源包括（）
A.
鼠类和其他啮齿动物
B.
肺鼠疫病人
C.
健康带菌者
D.
恢复期带菌者
E.
以上均是
【简答题】阅读理解。 Mr Knott was a teacher. He taught in a big school in London. He lived a long way from the school, so he was usually quite tired when he got home. At nine o'clock one evening when he was in bed, ...
【简答题】阅读理解。 Mr.Knott[not] was a teacher. He taught in a big school in London. He lived a long way from the school, so he was usually quite tired when he got home. At nine o'clock one evening when he was in ...
【简答题】Man has a blood tie with nature and nobody can live outside nature. Nature provides us with everything we need: the air we breathe, the water we drink, and the food we eat. For quite a long time after...
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