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Topic
比和比例
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Quizzes in 比和比例
数学
算术与数系
在比例 8 : x = 12 : 18 中,求 x 的值。
9
12
15
18
Correct answer(s):
12
数学
算术与数系
求 240 的 15%。
36
32
40
34
Correct answer(s):
36