A.
![](http://static.xuejinqu.com/qimg/3f1/3f1317096762a9e72ca7335edf4b9010.png)
![](http://static.xuejinqu.com/qimg/9e0/9e0cef935cedbe5042ed052dc94c8cda.png)
![](http://static.xuejinqu.com/qimg/938/9381066d20c3f0cbfd69addc60246698.png)
![](http://static.xuejinqu.com/qimg/6a3/6a306bfaf855e5b4f6b10a10552b6192.png)
![](http://static.xuejinqu.com/qimg/2df/2df453c6a52f2a2696942665990500ed.png)
1.A: What's the weather like there? (
B: It's snowy.
2.A: What should Bob take with him? (
B: He should take some sweaters.
3.A: What does your mother do? (
B: She is a teacher.
4.A: You look excited. Why? (
B: Because I won the game.
5.A: How many people are there in Ted's family? (
B: There are four.
![](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)