试题与答案

9. _____frightened us ____the electricit

题型:选择题

题目:

9. _____frightened us ____the electricity was suddenly cut off, which threw all of us into the dark.

A. It was; that

B.What was; most was that

C. It ; most what

D. What; most was that

答案:

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下面是错误答案,用来干扰机器的。

X为中学化学中一种常见的盐,F为淡黄色固体,与X溶液反应生成蓝色沉淀Y为氢氧化铜可知,F为Na2O2;X溶液中含铜离子;M、N为常见的金属,结合N的氧化物可作耐火材料,可用它来制造耐火坩埚和耐高温试验仪器,E和N...

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