皮皮学，免费搜题
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【单选题】
听力原文：Man: Hello! Men't you glad the semester is over? Man: Yep! Are you going to the Museum this Saturday? W: I haven't thought about it. Are you? M: Sure. Would you like to go with me? W: Sounds like fun. M: You will have to buy you own ticket though. W: Are you broke again? Let me treat you. M: Wow! When did you come into so much cash? W: You know I am a waitress at the student center. Anyway now that the final exams are almost over, I'd love a day out. M: Since you have been so great about buying the 6ckets why don't I take us out to dinner? W: You have got a deal. Let's buy the tickets now. When does this conversation take place?A.
The end of the semester.
B.
The beginning of the semester
C.
One of the speakers' birthday
D.
Before the examination
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皮皮学刷刷变学霸
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【多选题】下列选项中，不属于新斯的明药理作用的是（）。
A.
抑制运动神经末梢释放乙酰胆碱
B.
增强胆碱酯酶的活力
C.
具有拟毒蕈碱样作用，且可为阿托品所拮抗
D.
能直接兴奋骨骼肌运动终板的N2受体
E.
具有一定的中枢作用
【单选题】有机磷对胆碱酯酶活性有抑制作用,乙酰胆碱不被破坏而在体内蓄积,使交感神经及副交感神经兴奋,出现的中毒症状,可用阿托品缓解,属于
A.
竞争性拮抗作用
B.
功能性拮抗作用
C.
代谢性拮抗作用
D.
症状拮抗作用
E.
综合拮抗作用
【简答题】一辆重力未8000N的雪橇,在240N的水平拉力作用下沿水平冰面匀速前进,求雪橇与冰面间的动摩擦系数。 (在纸上写出计算过程,拍照上传答案,否则不得分)
【简答题】在JSP文件中，同时存在HTML代码与_____________代码。
【单选题】During a cattle drive, cowboys took a group of cows from a wild and open country to
A.
the West states and Texas
B.
the cities of the East States
C.
the people who eat beef in the cities
D.
the railroad towns hundred miles away