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【单选题】
This afternoon there will be a fire drill. Now please remember the instructions. When the bell rings, you all go very quickly, in an orderly way, down the stairs—the stairs, remember, not in the lifts(电梯). I repeat, do not use the lifts—and assemble in the square outside. You can come into the building again once the signal has been given. A fire drill is______.A.
a real fire
B.
to drill for fire
C.
to put out fire
D.
to prepare people for a real fire
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【单选题】It is sometimes difficult for a newly established corporation to ______ the changing demands of the market.
A.
keep up with
B.
catch up with
C.
cope with
D.
fight with
【简答题】向用户授予对象权限时,使用___________选项表示该用户可以将此对象权限再授予其他用户。
【简答题】三角洲的形成需要哪几个条件?
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