题目内容

激发力量的大小等于哪两个变量的乘积（）

A. 效价
B. 期望值
C. 努力
D. 满足

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简述：波特和劳勒的期望模式的基本内容

What I do for you?I'd a cup of coffee.

A. mayrather
B. mustbetter
C. canlike
D. shallhad

Mary__________ be in Paris. I saw her in town only a few minutes ago.

A. mustn't
B. shouldn't
C. can't
D. may not

When__________ is up to you to decide.

A. leaving
B. to leave
C. will leave
D. left