A survey suggests that nearly one in six children has ificulty___to talk.

A、learnt

B、learning

C、learn

D、to lear

提问人：网友gpeng1999 发布时间：2022-01-07

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更多“A survey suggests that nearly …”相关的问题

第1题

A survey suggests that nearly one in six children has ificulty___to talk.

A、learnt

B、learning

C、learn

D、to lear

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第2题

The three paragraphs that follow all discuss the same topic. Only one of them shows unity. First read the paragraphs. Then answer these questions. Which paragraph has unity? (1') Which paragraph does not have unity because it discusses two different topics? (2') Which paragraphs does not have unity because it has sentences that are not related to the main topic? (2')

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第3题

Discount depends on the quantity the buyer orders only.

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第4题

The restriction enzyme SalI cuts the sequence GTCGAC to leave a four base, 5' overhang. The restriction enzyme XhoI cuts the sequence CTCGAG to leave a four base, 5' overhang. If you mix a SalI-digested insert with a XhoI digested plasmid vector and perform a ligation, which best describes the properties of your ligation product:

A、The insert can be removed by digesting with SalI or XhoI.

B、The insert can be removed by digesting with SalI but not XhoI.

C、The insert can be removed by digesting with XhoI but not SalI.

D、The insert cannot be removed by digesting with either SalI or XhoI.

E、You have no product because the insert and vector cannot be ligated together.

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第5题

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D、All of the above are correct.