________ (assume) that we can't get the

题型:完形填空

问题:

________ (assume) that we can't get the necessary equipment, we will have to give up the experiment.

考点:并列连词从属连词
题型:完形填空

______ proves that Jack is really enthusiastic and cautious.

A.It happened that

B.When it happened

C.What happened

D.That has happened

题型:完形填空

世界三大宗教是:                                        

A.基督教、伊斯兰教、犹太教

B.基督教、伊斯兰教、佛教

C.基督教、道教、佛教

D.基督教、印度教、佛教

题型:完形填空

取用无菌溶液时,应首先核对

A.瓶盖有无松动

B.瓶口有无裂缝

C.溶液的标签

D.溶液有无沉淀

E.溶液内有无变色

题型:完形填空

由光性非均质体微小晶粒组成的半透明玉石在正交偏光镜下旋转360°,将出现()

A.完全消光(始终暗)

B.不消光(始终亮)

C.四次明暗变化

题型:完形填空

辅助电源系统的定义。

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