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

歡迎您訪問每日一練：△ABC中，∠C＝90°，CD為高，則互為余角的有！

每日一練：△ABC中，∠C＝90°，CD為高，則互為余角的有

更新時間：2024-01-12 12:49:44作者：貝語網(wǎng)校

△ABC中，∠C＝90°，CD為高，則互為余角的有

A.1對

B.2對

C.3對

D.4對

試題答案

D

為您推薦

數(shù)學考題練習：比6.5小的非負整數(shù)有

比6.5小的非負整數(shù)有A.5個B.6個C.7個D.8個

2024-01-12 16:48

數(shù)學考題練習：如圖所示，觀察硝酸鉀和氯化銨在水里的溶解度，下

如圖所示，觀察硝酸鉀和氯化銨在水里的溶解度，下列敘述不正確的是A.硝酸鉀的溶解度比氯化銨的溶解度大B.約26℃時二者的溶解度相等C.溫度為10℃時氯化銨的溶解度大D.溫度為40℃時，硝酸鉀的溶解度大

2024-01-12 16:48

數(shù)學考題練習：如果a：b=1：2，b是a、c的比例中項，則下

如果a：b=1：2，b是a、c的比例中項，則下面結論正確的是A.a：c=1：2B.a：c=2：1C.b：c=1：2D.b：c=2：1

2024-01-12 16:48

數(shù)學考題練習：如圖所示，方程組的解是

如圖所示，方程組的解是A.B.C.任意數(shù)對D.不能確定

2024-01-12 16:48

數(shù)學考題練習：買一個足球需要m元，買一個籃球需要n元，現(xiàn)在3

買一個足球需要m元，買一個籃球需要n元，現(xiàn)在3個足球和5個籃球共需要A.8mn元B.15mn元C.（5m+3n）元D.（3m+5n）元

2024-01-12 16:48

數(shù)學考題練習：如圖，矩形紙片ABCD中，AB=5cm，BC=

如圖，矩形紙片ABCD中，AB=5cm，BC=10cm，CD上有一點E，EC=2cm，AD上有一點P，PA=6cm，過點P作PF⊥AD交BC于點F，將紙片折疊，使P和E重合，折痕交PF于Q，則線段PQ的長是cm．A.4B.4.5C.4D.4

2024-01-12 16:48

加載中...
主站蜘蛛池模板： | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |