Hello, I’m Weiwei. I’m a boy. I’m nine. I’m a pupil. Look! This is a photo (照片) of my family (家庭). This is my father, he’s a policeman. This is my mother, she’s a doctor. This is my sister Lanlan, she’s four. Doudou is my dog, it’s a yellow dog, and it’s my friend (朋友).
1.How old is Weiwei? ( )A.9 | B.8 | C.7 |
A.![]() | B.![]() | C.![]() |
A.![]() | B.![]() | C.![]() |
A.Yes, she is. | B.No, she isn’t. | C.Yes, he is. |
A.a yellow cat | B.a yellow dog | C.a yellow bird |
![](http://static.xuejinqu.com/images/y-prise.png)
同类型试题
![](http://static.xuejinqu.com/images/medal.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)