下列物质不能通过化合反应得到的是( ) A.Fe(OH)3 B.FeCl2 C.

题型:选择题

问题:

下列物质不能通过化合反应得到的是(  )

A.Fe(OH)3

B.FeCl2

C.Al(OH)3

D.FeS

考点:单质铁
题型:选择题
根据对话内容,从下面方框中选择适当的句子补全对话,使对话内容完整、通顺 。
Li Jun: Good morning,Doctor.
Doctor: Good morning.   1.____
Li Jun:   2.____ I've got a pain here.
Doctor: 3.____
Li Jun:Since yesterday evening. I couldn't sleep well last night.
Doctor:Let me see. Do you feel the pain here?
Li Jun:Yes. Is it very serious,Doctor?
Doctor:   4.____    But you'd better stay in bed for two days. And I'd  like you to take these pills
              three times a day.   5.____
Li Jun:Thanks a lot,Doctor.
Doctor:You're welcome.
A. I don't think it's anything serious.
B. There's something wrong with my back.
C. How long have you had it?
D. You'll be all right in two or three days.
E. What's wrong with you?
题型:选择题

一个最简真分数,分母与分子的积是24,这个最简分数是(    )或(    )。

题型:选择题

小剂量阿司匹林预防血栓形成的机制是

A.抑制单胺氧化酶
B.抑制胆碱酯酶
C.激动多巴胺受体
D.阻断多巴胺受体
E.抑制TXA2合成

题型:选择题

对征税对象的全部数额都按与之相应的税率计算税额的是()。

A.超额累进税率

B.全额累进税率

C.比例税率

D.定额税率

题型:选择题

现代政府本质上属于()政府,应该为社会提供公共服务。

A.精英专制型

B.民选型

C.公共服务型

D.公众协商型

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