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歡迎您訪問數學考題練習:對于式子①,②中,以下判斷正確的是!

數學考題練習:對于式子①,②中,以下判斷正確的是

更新時間:2024-01-12 14:02:55作者:貝語網校

對于式子①,②中,以下判斷正確的是

A.①、②都是整式

B.①是整式,②是分式

C.①是分式,②是整式

D.①、②都是分式

試題答案

B

試題解析

根據分式的定義進行解答即可,即分母中含有未知數的式子叫分式.

解答:①是單項式,故是整式;

②分母中含有未知數,故是分式.

故選B.

點評:本題考查的是分式的定義,在解答此題時要注意分式是形式定義,只要是分母中含有未知數的式子即為分式.

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