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【单选题】
25 °C时, NaCl ( s )在水中的溶解度为 6 mol/L ,在此温度下,如果将 1 molNaCl(s) 加入到 1 L 水中,则过程的( )A.
△ r G m ＜ 0 ，△ r S m ＞ 0
B.
△ r G m ＞ 0 ，△ r S m ＞ 0
C.
△ r G m ＞ 0 ，△ r S m ＜ 0
D.
△ r G m ＜ 0 ，△ r S m ＜ 0
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【单选题】The old man was too poor _____ a room _____. [ ]
A.
have; to live
B.
to have; live
C.
to have; to live
D.
to have; to live in
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【单选题】We ordered 20 boxes of your products, but we have only got 19.
A.
You do not have to.
B.
It does not matter.
C.
We will send another tomorrow.
D.
Nothing serious.
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【单选题】Read and choose the best answer.If you're looking for ways to improve your products or services, customers can be one of your most valuable sources of information and market research. So why not take ...
A.
expanding your business
B.
reducing your production cost
C.
selling your products or services
D.
improving your products or services
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