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【简答题】
该冷却塔采用( )式支座结构,共有( )个。
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皮皮学刷刷变学霸
举一反三
【判断题】Different tribes of Native Americans share the same language and customs.
A.
正确
B.
错误
【判断题】Different tribes of Native Americans share the same language and customs.
A.
正确
B.
错误
【单选题】DSAl50／ DSA200 受电弓滑板安装在弓头支架上， 弓头支架垂悬在( )拉簧下 方， 两个扭簧安装在弓头和上臂间。
A.
2 个
B.
3 个
C.
4 个
D.
5 个
【简答题】光合作用中暗反应是由酶所催化的化学反应，温度影响不大。( )
【单选题】What became of Vinland after Thorfinn Karlsefni's party left?
A.
Hostile native tribes destroyed the buildings．
B.
It became a permanent colony a few years later．
C.
Historians made no further mention of it．
D.
It was sometimes used as a base for fishing．
【单选题】Certain native American tribes tell of a ____which came over the earth.
A.
blood
B.
flood
C.
deluxe
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