题目内容

The little boy was so__________ in a picture book that he did not hear the bell.

A. absorbed
B. absorb
C. abzorb

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动物体内的脂肪组织可以直接利用脂肪分解产生的甘油再合成脂肪

A. 对
B. 错

He has used his mobile phone for five years and wanted to replace it _____ a modern one.

A. in
B. out
C. up
D. with

只有乙酰辅酶A是脂肪酸降解的最终产物

A. 对
B. 错

As people connect _____ each other they are able to share their experience and learn from each other.

A. with
B. at
C. to
D. into

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