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【单选题】
下列说法中正确的是()A.
圆柱，圆锥，棱锥的底面都是圆
B.
有一个面为多边形，其他各面都是三角形的几何体是棱锥
C.
将直角三角形以它的一直角边所在的直线为轴旋转一所得的几何体为圆锥
D.
将直角梯形以它的一腰所在的直线为轴旋转一所得的旋转体为圆柱
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A.
弹性原则
B.
整分合原则
C.
反馈原则
D.
能级原则
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【单选题】If a friend said something bad______you, what would you do? [ ]
A.
about
B.
to
C.
for
【单选题】.根据护士能力、职称、学历等不同进行科学分级,并安排相应职级的岗位,做到人尽其才、才尽其用,体现了管理的( )
A.
整分合原则
B.
弹性原则
C.
反馈原则
D.
能级原则
【单选题】. You said that the current shortage of water in some provinces would end soon, ______?
A.
would it
B.
wouldn’t it D. did you D. didn’t you
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【单选题】—You said we would have a picnic next Friday? —_____．But it will depend on the weather．
A.
OK
B.
You’ve got it right
C.
Good idea
D.
All right
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