求下列各比的比值：【題組】 (1)：的比值＝______________ 。

問題詳情

8.求下列各比的比值：
(1)

：

的比值＝______________ 。

參考答案

答案：D
難度：簡單0.725956
統計：A(11),B(8),C(454),D(1253),E(0)

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