A.
![](http://static.xuejinqu.com/qimg/dbd/dbd0d6798d3b7c3caf4c23bb03a6377e.png)
![](http://static.xuejinqu.com/qimg/e8c/e8c5f6b310dc6fa3720cf08097c2d81f.png)
![](http://static.xuejinqu.com/qimg/07e/07e21c7f54109d2ba0a2246d2346df1e.png)
![](http://static.xuejinqu.com/qimg/150/150fa861d7e5b2148e06dac5707ba06f.png)
![](http://static.xuejinqu.com/qimg/526/52654e73f0148a5dbdcfeffcb8525d33.png)
1.touch your head (
2.clap your hand (
3.shake your leg (
4.stamp your foot (
5.wave your arm (
![](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)