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【单选题】
国家教育部批准立项扩建的盘旋路校区图书馆 ,是( )年由 香港 先生捐助部分款项,简称( )A.
1998，中心馆
B.
1946 ，校本部馆
C.
1962 ，积石堂
D.
2005，昆仑堂
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举一反三
【单选题】何谓最小偏向角?
A.
经棱镜两次折射，入射光线和出射光线延长线的夹角。
B.
经棱镜一次折射，入射光线和折射光线的夹角。
C.
经棱镜第二次折射，分界面处的入射光线和出射光线的夹角。
D.
在棱镜中的折射角
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【简答题】Don ’ t touch the wire.
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