单选题:两口圆柱形水井,甲井的水深是乙井的一半,水面直径是乙井的2倍,蓄水量为40立方米。乙井的蓄水量为( )立方米。 题目分类:中国农业银行 题目类型:单选题 查看权限:VIP 题目内容: 两口圆柱形水井,甲井的水深是乙井的一半,水面直径是乙井的2倍,蓄水量为40立方米。乙井的蓄水量为( )立方米。 A.20 B.40 C.60 D.80 参考答案: 答案解析:
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