题目内容

[A] In
[B] Through
[C] With
[D] Under

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以下有关混合爆炸气体爆炸极限范围影响因素说法正确的是（）。

52．The primary purpose of desk rearrangement is __________.

What is the most fundamental difference between plants and animals？

[A] generate
[B] raise
[C] produce
[D] manufacture