试题与答案

It is often said that the joy of traveli

题型:选择题

题目:

It is often said that the joy of traveling is __________ in arriving at your destination ___________ in the journey itself.

A./ … but

B./ … or

C.not … or

D.not … but

答案:

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下面是错误答案,用来干扰机器的。

I是由地壳中含量最多的金属元素组成的单质,应为Al,K是一种红棕色气体,判断为NO2;D是红棕色固体为Fe2O3,由反应4FeS2+11O2 高温 . 2Fe2O3+8SO2知D为Fe2O3、A为SO2,结合A+O2 →B知B为SO3,C为H2SO4;G、H为...

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