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( )| A．She is my art teacher. |
| B．She is my music teacher. |
| C．She is my English teacher. |
( )| A．I like dancing. |
| B．I like drawing. |
| C．I like singing. |
( )| A．I have two pears. |
| B．I have three pears. |
| C．I have four pears. |
( )| A．This is our science lab. |
| B．This is our classroom. |
| C．This is our art club. |
| A．She is an art teacher. |
| B．She is a music teacher. |
| C．She like dancing. |
同类型试题
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
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
