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【多选题】
下列哪些与库溴铵相符A.
化学结构为雄甾烷衍生物
B.
具有雄性激素的生理活性
C.
大手术首选药
D.
化学结构中2位和16位各有一个1-甲基哌啶基取代
E.
化学结构中3位和17位各有一个乙酰氧基取代
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【单选题】听力原文：W: Last night, Jason and his girlfriend went out for dinner. He parked his car near the restaurant And after dinner they came out and found it gone. M: Wow, that's really tough. He just borrowed ...
A.
Jason damaged Mike's car in an occident.
B.
Jason just bought a new car.
C.
Jason bought a new car for Mike.
D.
Jason couldn't find Mike's car.
【单选题】当建筑物沿街道部分的长度大于150m 或总长度大于( )m 时,应设置穿过建筑物的消防车道。确有困难时,应设置环形消防车道。
A.
200
B.
250
C.
160
D.
220
【简答题】当建筑物沿街道部分的长度大于( )m或总长度大于( )m时,应设置穿过建筑物的消防车道。
【简答题】机械制图国家标准中基本图幅有( )种,GB表示( ),T表示( )
【简答题】Suppose you don't need your car today.And suppose，as it happens that a stranger in your area does need a car.Would you be willing to rent yours out? Several carsharing startups，including Getaround，R...
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