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【简答题】
配制 200 mL 1.0 mol · L -1 H 2 SO 4 溶液,需要 18 mol · L -1 H 2 SO 4 溶液的体积是 __________(保留两位小数) 。
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举一反三
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【单选题】Paragraph 2 indicates that______.
A.
most of man's employment is from fishing
B.
man can always turn to fishing for employment
C.
forty percent of Chileans live on fishing boats or ships
D.
fishing has been the biggest industry in Newfoundland
【多选题】What determines the quantity of a good a seller can supply?
A.
price
B.
input price
C.
technology
D.
expectation determine the seller's supply of a good.
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