[[QOrDeR]]
![](http://static.xuejinqu.com/qimg/f32/f32d22b66e8ae2efa0b2b5383c1f2ef1.png)
A.There are twins. | B.This is a baby. |
![](http://static.xuejinqu.com/qimg/b06/b06dba63ab8de9e8f4ef6d647b83f2b2.png)
A.This is a man | B.This is a woman. |
![](http://static.xuejinqu.com/qimg/c07/c073068afc3a6134ee53b0ad6d6b82dc.png)
A.We’re women. | B.I am a man. |
![](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)