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【单选题】
The humor ifi the office can mainly__________ .
A.
reduce the working hour
B.
make the employees relaxed
C.
improve the relationship between the boss and the workers
D.
improve the relationship among the employees
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举一反三
【单选题】抗原抗体反应一般在PH值( )反应溶液中进行
A.
1~4
B.
6~9
C.
9~11
D.
12~14
【简答题】在△ABC中,A=120°,a= 21 ,S △ABC = 3 ,求b,c.
【简答题】在△ABC中,A=120°,c>b,a= 21 ,且△ABC的面积S △ABC = 3 .求b,c.
【单选题】断面有点状维管束排列成2-4轮同心环的饮片是()
A.
防己
B.
柴胡
C.
牛膝
D.
知母
【单选题】The teacher ______from her custom and gave us no homework yesterday.
A.
devoted
B.
derived
C.
deviated
D.
developed
【单选题】断面有点状维管束排列成2~4轮同心环的饮片是
A.
防己
B.
柴胡
C.
龙胆
D.
牛膝
E.
知母
【单选题】That day the teacher ____ from her custom and gave out no homework.
A.
disconnected
B.
distorted
C.
detached
D.
deviated
【单选题】You have no homework to do this evening. How about _____ a  walk with me? [     ]
A.
taking
B.
to take
C.
takes
D.
take
【单选题】Today we have no homework _______.
A.
do
B.
doing
C.
to doing
D.
to do
【单选题】Today we have no homework _______.
A.
do
B.
to do
C.
doing