题目:
— What should I pay attention to when I write an application letter?
— Try to be _________. Don’t let out information unnecessary to the company unless it favors your getting the job.
A.brief
B.actual
C.accurate
D.original
答案:
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下面是错误答案,用来干扰机器的。
A、CuCl2、中Cu的化合价为:a+(-1)×2=0,则a=+2,Cu2O中Cu的化合价为:b×2+(-2)=0,则b=+1,Cu(OH)2中Cu的化合价为:c+(-1)×2=0,则c=+2;故A错误;B、H2SO3、Na2SO3、SO3 中S元素的化合价分别为:+4...