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( )| A．The teacher's office is on the second floor. |
| B．The teacher’s office is next to the gym. |
( )| A．It's rainy outside. Take your umbrella, please. |
| B．It's snowy outside. Put on your hat. |
( )| A．It's 7: 30 a m. It's time to go to school. |
| B．It’s 9:00 p.m. It’s time to go to bed. |
( )| A．The shirt is nice. It's very expensive. |
| B．The dress is pretty. it's very expensive |
( )| A．These are cows. They are big. |
| B．These are sheep. They are cute. |
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
