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问题 解答题

三（1）班48名同学中，会游泳的有23人，会下象棋的有27人，既不会游泳又不会下象棋的有14人。那么既会游泳又会下象棋的有几人？会下象棋但不会游泳的有几人？

答案

23+27+14-48=16（人）；27-16=11（人）

单项选择题

If the market prices of each of the 30 stocks in the Dow Jones Industrial Average (DJIA) all change by the same percentage amount during a given day, which stock will have the greatest impact on the DJIA（）

A. The one whose stock trades at the highest dollar price per share.

B. The one whose total equity has the highest market value.

C. The one having the greatest amount of equity in its capital structure.
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单项选择题

引起一侧输尿管扩张的疾病有以下哪项？（）①输尿管结石；②输尿管狭窄（炎性或结核性或先天性）；③输尿管癌；④腹膜后肿物

A.①②

B.①②③

C.②③④

D.①③④

E.①②③④
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