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【单选题】
膜剂由药物和( )组成A.
基质
B.
乳化剂
C.
成膜材料
D.
赋形剂
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皮皮学刷刷变学霸
举一反三
【单选题】价层电子对互斥理论首先预测的形状是
A.
分子中化学键的形状
B.
分子中外面原子作为顶点构成的几何形状，即分子形状
C.
分子中所有原子作为顶点构成的几何形状
D.
分子中中心原子上价电子对远离原子核一端作为顶点构成的几何形状
【单选题】—Dad, I don’t think Oliver the right sort of person for the job. —I see. I’ll go right away and ________.
A.
pay him back
B.
pay him off
C.
put him away
D.
put him off
【简答题】Java.net中提供了两个类：（ ）和Socket，它们分别用于服务器端和客户端的socket通信。
【简答题】Dad : I don’t think so. It is a 8 ( 趋势 )that there are male nurses in the hospital, and it is demanded by the 9 . Mum : I think this job is inferior ( 下等的 ), somehow.
【简答题】Java.net 中提供了两个类: ___ 和 ___ ,它们分别用于服务器端和客户端的 socket 通信
【单选题】The Muster List (“Station Bill”) shows each person’s lifeboat station，duties during abandonment，basic instructions，and（）.
A.
all emergency signals
B.
instructions for lowering the lifeboats
C.
the time each weekly drill will be held
D.
work schedule
【简答题】What should be done to make sure that medicines are on board each lifeboat?
【单选题】Each year the two friends wrote to each other less and less and ually their friend-ship__________．
A.
fell out
B.
broke off
C.
cut off
D.
held out
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