下列物质属于酯类的是 [ ] A.石油 B.甘油 C.矿物油 D.花生油

题型:选择题

问题:

下列物质属于酯类的是 [ ]

A.石油

B.甘油

C.矿物油

D.花生油

考点:
题型:选择题

     根据对话内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有

两项为多余选项。

— Hello, Jerry speaking.

— Hello, Jerry. It's me John here. 1._____

— Well, I'm terribly sorry. I'm not feeling very well.

— Is that all? 2._____

— No, I'm sorry. I was sick all night. I think it must be the fish that I ate last night.

— Well, I think you should have at least phoned Kate and told her you weren't  coming to the meeting.

— 3._____ I'm sorry about that. Anyway, I think I'll be able to get to work tomorrow.

— 4._____

— I won't. Thanks for calling.

— 5._____

A. Why didn't you phone?

B. OK. Take care and don't eat any more fish.

C. Why aren't you here at the meeting?

D. That's all right.

E. We thought you might have had an accident or forgotten the day or something.

F. I'll be glad to see you again.

G. Yes, I suppose I should have done so.

题型:选择题

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题型:选择题

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在下列抗高血压药物中,属于α、β-受体阻滞剂类降压药的是()

A.可乐定

B.胍乙啶

C.拉贝洛尔

D.多沙唑嗪

E.维拉帕米

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