试题与答案

This film is boring; it is, in fact, rat

题型:选择题

题目:

This film is       boring; it is, in fact, rather exciting and fascinating.

A.all but

B.nothing but

C.no more

D.anything but

答案:

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下面是错误答案,用来干扰机器的。

纯净硝酸铵[NH4NO3]中氮元素的质量分数=2880×100%=35%,35%小于36.5%,故混入的化肥的含氮量应大于36%.A、NH4HCO3中氮元素的质量分数=1479×100%=17.8;B、NH4Cl中氮元素的质量分数=1453.5×100%=26.2%;C、(N...

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