cloninghumanembryosisnotlegali

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更新 2022-09-03
科目英语
题型单选题
难度中等
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_______cloning human embryos is not legal in many countries, some scientists are already pushing ahead with research in order to produce a cloned human baby.

A．While

B．When

C．Since

D．if only

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---Is he here now?---No, I ___ he ___ here by now.

A．thought, was

B．think, will be

C．think, is

D．thought, had been

题型：未知
难度：未知

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My brother tried ___, but still he couldn't work out this maths problem.

A．a great deal of

B．a great deal

C．a number of

D．lots of

题型：未知
难度：未知

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He seemed as if he ___ his homework when his mother came in.

A．did

B．is to be doing

C．were doing

D．be doing

题型：未知
难度：未知

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The poster says that a writer and poet ___ to give us a talk on English next week.

A．is

B．are

C．be

D．will be

题型：未知
难度：未知

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How this kind of plant can be ____ in a special way is still unknown to us.

A．kept away

B．kept out

C．kept alive

D．kept off

题型：未知
难度：未知

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