脱硫剂不允许浸水主要是由于脱硫剂是水溶性的,将会溶解在水中。
参考答案:错
调查的方式很多,常用的有三种:第一种是开会();第二种是();第三种是()。
We've just moved in to a bigger house and there's lot to do. Let's () it.
A. keep up with
B. do away with
C. get down to
D. look forward to