皮皮学，免费搜题
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【单选题】
按价层电子对互斥理论推测,下列分子或离子中几何形状不是三角锥形的是A.
PBr 3
B.
CH 3 -
C.
SO 3
D.
H 3 O +
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】In the closed cooling system, the water _____.
A.
is made to circulate out of the system
B.
is made to circulate within the system
C.
is made circulate within the system
D.
is made circulate out of the system
【简答题】下述描述神明与五脏系统的关系中正确的是( )A. 心藏神 B.肺藏魂 C.肝藏魄 D.肾藏志
【简答题】circulate Swimming helps to get the blood ________ through the muscles. The Treasury Department plans to remove older coins from ________ and replace them with new ones.
【简答题】A．deteriorate B．relieve C．improve D．circulate
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