题目内容

64.What term describes electronic commerce that can be conducted over a wireless device?

A.E-trade
B.M-commerce
C.Wireless business
D.Virtual commerce

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62.When businesses provide enabling technologies that allow people to create, modify, and oversee the development of a product or service, it is known as ____.

A.open source technology
B.Long Tail strategy
C.crowdsourcing
D.initial public offering

碘解磷定解救有机磷酸酯类中毒的主要机理是

A. 直接激活胆碱酯酶
B. 阻断M受体
C. 生成磷酰化碘解磷定
D. 生成磷酰化胆碱酯酶

新斯的明可用于

A. 术后腹气胀和尿潴留
B. 胃肠平滑肌痉挛
C. 重症肌无力
D. 阵发性室上性心动过速
E. 缓慢性心律失常

新斯的明具有很强的兴奋骨骼肌作用，主要机理有

A. 抑制胆碱酯酶
B. 兴奋运动神经
C. 直接激动骨骼肌运动终极的N2-R
D. 直接抑制骨骼肌运动终极的N2-R
E. 促进运动神经末梢释放Ach