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【单选题】
已知生产函数Q=F(L,K)=2KL－0.5L2－0.5K2，假定厂商目前处于短期生产，且K=10，那么劳动的边际产量函数为（）。A.
MP L = － L+20
B.
MP L =L － 20
C.
MP L = － L+40
D.
MP L =L － 40
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举一反三
【单选题】The manager spoke highly fo such ____ as loyalty,courage and truthfulness shown by his employees.
A.
virtues
B.
features
C.
properties
D.
characteristics
【判断题】When skimming, we watch for signal words or phrases to follow the author’s direction.
A.
正确
B.
错误
【单选题】At the dinner held in his honor, Miller ______ a toast to the lasting friendship of his former classmates.
A.
proposed
B.
suggested
C.
raised
D.
forwarded
【判断题】When skimming, we watch for signal words or phrases to follow the author’s direction.
A.
正确
B.
错误
【单选题】signal the direction of a writer’s thoughts and they are like the road signs that guide travelers.
A.
Nouns
B.
Verbs
C.
Subjects
D.
Transitions
【简答题】2019的卧室门从()变为() 。
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