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【单选题】
刘易斯拐点是指（）A.
资源缺乏向剩余的转折点
B.
劳动力短缺向过剩的转折点
C.
劳动力过剩向短缺的转折点
D.
资本过剩向短缺的转折点
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皮皮学刷刷变学霸
举一反三
【简答题】( 11001010 )2=(________)10
【单选题】11001010
A.
在一定条件下，偏振光透过长ldm，且含lg/ml旋光物质的溶液时的旋光度
B.
在一定条件下，偏振光透过长lcm，且含1g/ml旋光物质的溶液时的旋光度
C.
在一定条件下，偏振光透过长ldm，且含1%旋光物质的溶液时的旋光度
D.
在一定条件下，偏振光透过长lmm且含1mg/ml旋光物质的溶液时的旋光度
E.
在一定条件下，偏振光透过长ldm且含lmg/ml旋光物质的溶液时的旋光度
【单选题】Frank insisted that he was not asleep I had great difficulty in waking him up.
A.
whether
B.
although
C.
for
D.
so
【单选题】—I’m afraid I can’t go to your party, I have lots of things to do. —__________!
A.
What a pity
B.
With pleasure
C.
No problem
D.
Mind yourself
【单选题】—Our city looks more beautiful! —Yes. Lots of trees and grass _____ since last year. [ ]
A.
have been planted
B.
are planted
C.
will be planted
D.
were planted
【简答题】清胃散的组成药物中含有（ ）
【简答题】清胃散的组成药物中不含（ ）
【单选题】Frank insisted that he _____ asleep I had great difficulty in waking him up.
A.
was not
B.
shouldn't be
C.
were not
D.
shan't
【单选题】Last night we had lots of fun ________ computer games at home. [ ]
A.
play
B.
playing
C.
plays
D.
to play
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