亚洲男人天堂av,国产一区二区久久精品,国产精品一区二区久久精品,国产精品久久久久久一区二区三区,五月婷婷在线观看视频,亚洲狠狠色丁香婷婷综合

歡迎您訪問數學考題練習:水平放置的正方體的六個面分別用“前面、后面、上!

數學考題練習:水平放置的正方體的六個面分別用“前面、后面、上

更新時間:2024-01-12 16:25:09作者:貝語網校

水平放置的正方體的六個面分別用“前面、后面、上面、下面、左面、右面”表示,如圖是一個正方體的表面展開圖,上面標有“我、愛、重、慶、一、中”六個字,若圖中“我”字在正方體的前面,則這個正方體的后面是

A.重

B.慶

C.一

D.中

試題答案

B

試題解析

利用正方體及其表面展開圖的特點解題.方法比較靈活可讓“我”字面不動,分別把各個面圍繞該面折成正方體,這需要空間想象能力,如果想象不出就動手操作,或者拿手邊的正方體展成該形狀觀察.

解答:根據題意可知,求這個正方體的“后面”的字,即求與“我”相對的面上的字,因為“慶”與“我”相對面,所以圖中“我”在正方體的“前面”,則這個正方體的“后面”是“慶”.

故選:B.

點評:此題主要考查了正方體相對兩個面上的文字,注意正方體的空間圖形,從相對面入手,分析及解答問題.

主站蜘蛛池模板: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |