[[QOrDeR]]
![](http://static.xuejinqu.com/qimg/7b3/7b3e44be94c0065616a71887368ff042.png)
A:
B: It’s in the door.
【小题2】
![](http://static.xuejinqu.com/qimg/eb6/eb676fb2d68d57da6134b77ce029866f.png)
A:
B: No, it isn’t.
【小题3】
![](http://static.xuejinqu.com/qimg/449/449a5c0b5d485a673ccf9a348d150546.png)
A:
B: Her name is Sarah.
【小题4】
![](http://static.xuejinqu.com/qimg/d2b/d2ba30ed66ef7be016cd1823f9da3346.png)
A:
B: It’s a phone.
【小题5】
![](http://static.xuejinqu.com/qimg/d9b/d9bc59f30979b7ad279201d2e0eac817.png)
A:
B: He is a doctor.
![](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)