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( ) （1）Welcome to our school .
( ) （2）How was your trip ?
( ) （3）Thank you !
( ) （4）Did you have breakfast ?
( ) （5）How many students are therein your class ?
( ) （6）Nice to see you
( ) （7）Where was Lucy born ?
( ) （8）When will they leave for London ?
| A．There are forty-five. |
| B．They will leave tomorrow. |
| C．Yes, I did . H. She was born in America . |
| D．You are welcome . |
| E．It was very wonderful . |
| F．Nice to see you,too . |
| G．Thank you . |
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
