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【单选题】
下面关于电解质的叙述正确的是 （ ）A.
NaCl溶液能导电，所以NaCl溶液是电解质
B.
若某种电解质溶液中含有未电离的分子，则该电解质一定是弱电解质
C.
氯气和氨气的水溶液导电性都很好，所以它们是电解质
D.
CaCO 3 在水中溶解度很小，但溶解的 CaCO 3 全部电离，所以 CaCO 3 是强电解质
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【单选题】Mike is an extremely careless man. ________, it was not until he got to an ATM that it occurred to him he had left his card at home.
A.
On one occasion
B.
ashamed of
C.
In my mind ’ s eye
D.
recurring
【单选题】根据下列文章,请回答 36～40 题。 Mr. Mike Smith: It wasn't an easy decision, but we've been asking for a decent wage for years. Now at last people are beginning to listen to us. We' re only asking for a 25 percent...
A.
A 10% increase is already too much, and I' m here to persuade the Union to see reason.
B.
I hope that strikes should be banned in all sectors relating to the nation' s security and stability.
C.
We will never go back to work until our goals are achieved.
D.
I think that the government should give in to the electricity worker' s demands.
E.
I strongly suggest that all the power stations should be run by the army and that the strikers should be put into prison.
F.
I must make you clear that strikes will destroy the economy and that many people will lose their jobs.
G.
We are forced to call a strike because the government rejected our wage claim.
【单选题】关于混凝土氯离子含量及分布的检测，以下说法错误的是？
A.
利用硝酸银滴定法可以检测出氯离子含量
B.
利用铬酸钾滴定法可以检测出氯离子含量
C.
利用电位滴定法不能检测出氯离子含量
D.
当检测出氯离子含量＜ 0.15%时，基本可以排除氯离子诱发钢筋锈蚀的可能性
【简答题】是记述机关或企业、事业单位等对重要的、综合性工作进行讨论、研究、议决等事项的一种会议 记录 。
【单选题】阅读理解,请选出合适的答案 2.After walking out of the station, Mike_____. Mike worked in an office in a small town. One day his boss said to him, “Mike,I want you to go to Richmond, to an office there, to see Mr S...
A.
asked an old woman where the office was
B.
went to the office with an old woman
C.
found the office easily
D.
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