不规则需求往往给企业生产经营带来很多不便,所以我们应通过各种方式调节需求,使其尽量规则化。
参考答案:对
The most obvious reason why computer-based testing is becoming increasingly popular is that it makes tests easier ______.
A.take
B.taking
C.to take
D.taken
207+326+197+191的值为( )。
A.919
B.921
C.923
D.925