关于强、弱电解质的有关叙述错误的是( ) A．强电解质在水溶液中完全电离成阴、阳

发布时间：2017-04-22 16:43 │ 来源：www.tikuol.com

题型：选择题

问题：

关于强、弱电解质的有关叙述错误的是(　　)

A．强电解质在水溶液中完全电离成阴、阳离子

B．在溶液中，导电能力强的电解质是强电解质

C．对同一弱电解质来说，当溶液的温度和浓度不同时，其导电能力也不相同

D．纯净的强电解质在液态时，有的导电，有的不导电

考点：弱电解质电离的影响因素弱电解质的电离度弱电解质的电离

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完形填空。

     Food is very important. Everyone needs to  1  well if he or she wants to have a strong body. Our minds
also need a kind of food. This kind of food is  2 . We begin to get knowledge even when we are very young.
Small children are  3  in everything around them. They learn  4 while they are watching and listening. When
they are getting older. they begin to  5  storybooks, science books, or anything they like.
     When they find something new, they have to ask questions and  6 to find out the answers. What's the
best  7 to get knowledge? If we learn  8  ourselves, we will get the most knowledge. If we are   9 getting
answers from others and don't ask why, we will never learn more and understand  10 .

( )1. A. sleep
( )2. A. sport
( )3. A. interested
( )4. A. something
( )5. A. write
( )6. A. try
( )7. A. place
( )8. A. with
( )9. A. seldom
( )10. A. much

B. drink
B. knowledge
B. interesting
B. nothing
B. learn
B. think
B. way
B. to
B. always
B. well

C. eat
C. meat
C. good
C. anything
C. read
C. wait
C. road
C. by
C. sometimes
C. better

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应用巴比妥类所出现的下列现象中哪一项是错误的？

A．长期应用会产生身体依赖性

B．酸化尿液会加速苯巴比妥的排泄

C．长期应用苯巴比妥可加速自身代谢

D．苯巴比妥的量效曲线比地西泮要陡

E．大剂量对中枢抑制程度远比苯二氮卓类要深

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急性心肌梗死后窦速伴有室性期前收缩。优先使用的抗心律失常药物是

A．普鲁帕酮(心律平)

B．奎尼丁

C．维拉帕米

D．美西律(慢心律)

E．普萘洛尔(心得安)

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将硫酸钠和氢氧化钠固体混合物20g加入到196g质量分数为10%的稀硫酸中恰好完全反应．求反应后所得溶液中溶质的质量分数．

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Michael ____ in rock music.

A. interest
B. interesting
C. interested
D. is interested

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