( ) 1. May I borrow your markers, please? A.
![](http://static.xuejinqu.com/qimg/e09/e095784d114543a978654d74b14967d0.png)
( ) 2. Here you are. B.
![](http://static.xuejinqu.com/qimg/899/8992089fb4a1bfad1aa6017eaa93e940.png)
( ) 3. I collect rulers. C.
![](http://static.xuejinqu.com/qimg/3b3/3b3a494010354b4ac73e9b12f1b6f317.png)
( ) 4. I have thirty pencils. D.
![](http://static.xuejinqu.com/qimg/239/239eef87f28799f64e631a45041f226b.png)
( ) 5. May I borrow your backpack, please? E.
![](http://static.xuejinqu.com/qimg/dc8/dc8ba7e7ceb2a77529267c0002fb8f6d.png)
![](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)