现有16张不同的卡片,其中红色、黄色、蓝色、绿色卡片各4张,从中任取3张,要求取 发布时间:2017-05-14 22:30 │ 来源:www.tikuol.com 题型:选择题 问题: 现有16张不同的卡片,其中红色、黄色、蓝色、绿色卡片各4张,从中任取3张,要求取出的这些卡片不能是同一种颜色,且红色卡片至多1张,不同取法的种数为( )A.232B.252C.472D.484
题型:选择题 Read and judge. 读一读,判断下列4个小句子与你理解的是(T)否(F)一致。 Hello, I am a tall girl. I like drawing. I am drawing a picture now. In my picture, you can see a tall green tree, some red flowers, and a big mountain. Look! There is a red sun. Some boys are playing basketball. Some girls are flying kites. I like my picture. ( ) 1. The boy is drawing a picture. ( ) 2. I can see a cow in the picture. ( ) 3. The girl loves drawing pictures. ( ) 4. In the picture, I can see some yellow flowers. 查看答案