A.
![](http://static.xuejinqu.com/qimg/dbb/dbb0345e1bf78b0a59c8692b95b1b92e.png)
![](http://static.xuejinqu.com/qimg/2d0/2d05e0f1997b564b6150fba28726d493.png)
![](http://static.xuejinqu.com/qimg/613/6133a04a7dd9c47a7b7e54fffaf6f833.png)
![](http://static.xuejinqu.com/qimg/566/566e30dc873949b52bbf6878f1af61f9.png)
![](http://static.xuejinqu.com/qimg/c5e/c5e4b0766e05369e278bbad0d3f8172f.png)
1.In summer, I can go swimming. (
2.That girl is sleeping at home. (
3.My family and I go on a picnic on Saturdays. (
4.My grandpa plants flowers in spring. (
5.We like winter because we can make a snowman. (
![](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)