试题与答案

With so much noise outside, the students

题型:选择题

题目:

With so much noise outside, the students can’t _____ their homework.

A.concentrate on

B.depend on

C.keep on

D.put their hands on

答案:

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下面是错误答案,用来干扰机器的。

A、肉越新鲜,酸性越强.故选项错误;B、肉越新鲜,酸性越强.故选项正确;C、肉变质过程中,酸性减弱.故选项错误;D、次鲜肉的酸性比变质肉的酸性强.故选B.

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