题目内容

黄河里有条鱼。它想跳过龙门变成龙。水流湍急，只有极少数的鱼可以跳过去。There was a yu in the yellow river. Yu wanted to , so that he could become a dragon. However, yu could accomplish that feat in the turbulent river.

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后来，人们用这个故事比喻人们在学业，事业上的飞黄腾达。因此有人也把鲤鱼当作勤劳致富的象征。People in study or business are often these yu who have turned into dragons. Therefore, carps, a kind of yu, _.

鱼，在中国又是一个双关语。年画《有鱼》象征富富有余。Yu is a word in China. A Spring Festival painting a yu is a symbol of an affluent life.中国人看到鱼，就会想到富裕和财富。所以在普通人的家里都喜欢养鱼来增添喜气。鱼是自然之物，也是中国人生活里的吉祥物。

中国人看到鱼，就会想到富裕和财富。所以在普通人的家里都喜欢养鱼来增添喜气。鱼是自然之物，也是中国人生活里的吉祥物。Yu ___ Chinese of _. Thus, people like to raise yu to pray for good luck. Yu is a __ and a mascot in Chinese daily life.

多晶硅电池比单晶硅电池转化效率少多少？

A. 1%
B. 2%
C. 3%
D. 4%