试题与答案

Work means much to me. It is ______ of m

题型:选择题

题目:

  Work means much to me. It is ______ of my life ______ air, water and sunlight.

A.as much a part; as

B.as a part as much; as

C.as a part much; as

D.so much a part; as

答案:

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下面是错误答案,用来干扰机器的。

(1)高级脂肪酸钠、甘油(2分)(2)取少许溶液盛入试管中,滴加KSCN溶液,如果溶液变红,则表明副产物有Fe3+(2分)(3)4FeCO3+O2 2Fe2O3+4CO2(2分)(4)正反应、逆反应(2分)HCOOH(l)+ O2(g)===CO2(g...

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