(1)
![](http://static.xuejinqu.com/qimg/3c7/3c7d18555e490ffe8459c50913d170a1.png)
(2)
![](http://static.xuejinqu.com/qimg/c09/c094e038de7a0927761717721c32d44a.png)
(3)A. RIYL B. IRLV C. LYVI
(4)A.box B. book C. ball
(5)A.teacher B. student C. friend
(6)A.30 B. 40 C. 50
(7)A.boy B. girl C. man
(8)A.home B. room C. school
(9)A.door B. bed C. bag
(10)A. beef B. fish C. bread
![](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)