是指由现实中存在的未被解决的问题所产生的创业机会。
A. 问题型机会
B. 趋势型机会
C. 组合型机会
查看答案
After the speech ________, a lively discussion started.
A. is delivered
B. was delivered
C. has been delivered
D. had been delivered
He demanded that all work ________ today.
A. had been finished
B. would be finished
C. be finished
D. to be finished
As commander-in-chief of the armed forces, I have directed that all measures ________ for our defence.
A. had been taken
B. would be taken
C. be taken
D. to be taken
Not for a moment _________the truth of your explanation about the event.
A. we have doubted
B. did we dobut
C. we had doubted
D. doubted we
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