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歡迎您訪問數學考題練習:下列事件中,屬必然事件的是!

數學考題練習:下列事件中,屬必然事件的是

更新時間:2024-01-12 16:39:18作者:貝語網校

下列事件中,屬必然事件的是

A.男生的身高一定超過女生的身高

B.明天數學考試,小明一定得滿分

C.在十進制中1+2=3

D.某人在10分鐘內徒步行走100千米

試題答案

C

試題解析

根據必然事件的定義,一定會發生的事件為必然事件,即可得出答案.

解答:A、男生的身高一定超過女生的身高是不確定事件,故本選項錯誤;

B、明天數學考試,小明一定得滿分是不確定事件,故本選項錯誤;

C、在十進制中1+2=3是必然事件,故本選項正確;

D、某人在10分鐘內徒步行走100千米是不可能事件,故本選項錯誤.

故選C.

點評:本題主要考查了必然事件、不可能事件、隨機事件的概念,用到的知識點為:必然事件指在一定條件下一定發生的事件;不確定事件即隨機事件是指在一定條件下,可能發生也可能不發生的事件.

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