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【单选题】
中枢兴奋作用最明显的药物是A.
多巴胺
B.
肾上腺素
C.
麻黄碱
D.
间羟胺
E.
去甲肾上腺素
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反馈参考答案：
举一反三
【多选题】下述概念正确的是( )
A.
准确度是指测量值与真实值的接近程度
B.
精密度是指相同条件下，多次测定结果的相互接近程度
C.
误差是指测量值与真实值之差
D.
保留时间是指从进样到某一组分在柱后出现最高浓度的时间
E.
荧光是指物质分子接受光子能量被激发后，从激发态的最低震动能级返回基态时发射出的光
【简答题】精密度是指在相同条件下,用 的方法,对 试样进行多次平行测定时所得数值之间相互 的程度。精密度的高低常用 来衡量。
【简答题】试述我国劳动法的适用范围
【单选题】What can be inferred about Corrigan?
A.
He is a fat man.
B.
He does not like to attract much attention.
C.
He is rather arrogant.
D.
He behaves a little indifferent.
【简答题】One day two young men are walking in a big forest. One is fat , and the other is thin.” We are good friends. We must help each other. If we meet any beast, I’ll help you,” the thin man says. “I’ll hel...
【多选题】巴比妥类药物的性质有
A.
具有内酰亚胺醇-内酰胺的互变异构体
B.
与吡啶和硫酸酮试液作用显紫蓝色
C.
具有抗过敏作用
D.
作用持续时间与代谢速率有关
E.
pKa值大,未解离百分率高
【简答题】听力填表。 Husband Wife He was a small, 1______ man. He worked in a big office. She was a large, fat woman. He gave all his 2______ to his wife every Friday evening. She gave back some money which is only ...
【单选题】— "The lecturer was a tall and thin man, named George." — "Oh, it _____ Dr. George because he is short and fat."
A.
should not be
B.
can't have been
C.
must not have been
D.
wouldn't be
【单选题】Why is the man worried about Tim?A．He is getting too fat.B．He smokes too much.###
A.
Why is the man worried about Tim? A．He is getting too fat.
B.
He smokes too much.
C.
He doesn"t eat vegetables.
D.
He doesn"t look well at all.
相关题目：
【多选题】巴比妥类药物的性质有
A.
具有内酰亚胺醇-内酰胺的互变异构体
B.
与吡啶和硫酸酮试液作用显紫蓝色
C.
具有抗过敏作用
D.
作用持续时间与代谢速率有关
E.
pKa值大,未解离百分率高
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