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【单选题】
现刊 和 报纸能否外借?A.
报纸可以外借。
B.
不能外借，只供室内阅览。
C.
有现刊可以外借。
D.
可以外借，只要值班老师同意即可。
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【简答题】气圈破裂器的作用是控制气圈形状与节数,使管纱退绕张力均匀。____
【单选题】The Maryland Science Center s more than fun. You can enjoy the three floors of exciting things, watch the larger-than-life play on the 4th floor, and travel to other worlds, to far away stars, on the ...
A.
Learn science by trying it out.
B.
Watch and take part in a play.
C.
Make gifts for their friends.
【单选题】Which is TRUE about the Maryland Science?
A.
Visitors can play and learn at the same time.
B.
It helps visitors travel to other countries.
C.
It can be visited 24 hours a day.
【简答题】简述Harris算子的提取步骤
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