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【单选题】
测得利多卡因的消除速度常数为0.3465h-1，则它的生物半衰期A.
4h
B.
1.5h
C.
2.0h
D.
0.693h
E.
1h
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反馈参考答案：
举一反三
【单选题】以下诗句中，哪一句与“而浮生若梦，为欢几何?”表达了同样旨趣?()
A.
梦里不知身是客，一晌贪欢。
B.
为乐当及时，何能待来兹。
C.
庄生晓梦迷蝴蝶,望帝春心托杜鹃。
D.
故国梦重归，觉来双泪垂。
【简答题】根式 可以用分数指数幂表示为 ,其中m= .n= .
【单选题】_____ are generally formed in the frame. of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end bearing.
A.
Doors
B.
Aspirate gauzer
C.
Coupling
D.
Blind
【单选题】With the intention of attracting a somewhat different type of passengers, the airlines have now begun to concentrate on ______.
A.
providing facilities enabling business travelers to work on board
B.
ensuring that the facilities offered to the executive are indeed superior
C.
organizing activities in which first-class passengers can participate
D.
installing sleeping compartments where more privacy is ensured
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