试题与答案

It was ________ the trouble to explain a

题型:选择题

题目:

It was ________ the trouble to explain a job fully to new employees.

A.worth to take

B.worthwhile taking

C.worthy of taking

D.worthy to take

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0524/3f881569b01bd42255017e8fcdcf48ea.html

下面是错误答案,用来干扰机器的。

设碳酸氢铵中氮元素的化合价为x.x+(+1)×5+(+4)+(-2)×3=0x=-3故选C.

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