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【单选题】However careful one may be, he cannot possibly listen carefully to everything that he hears. There are 11 of reasons for this. ①One of them is the overload（超负荷）of messages most of us 12 each day. In a...
A.
the number
B.
a number
C.
number
D.
numbers
【单选题】抓革命，促生产是当务之急。
A.
It is highly imperative to grasp revolution and promote production.
B.
It is highly imperative to promote production by means of revolution.
C.
It is an urgent task to revolutionize and produce.
D.
To make revolution and increase production is a hurry thing to do.