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( )（1）Who’s he?
A．Yes, I am.
( )（2）Are you Mike?
B．Good afternoon.
( )（3）Good evening,Miss Li.
C．Hi, Mike.
( ) （4）Hi, Liu Tao.
D．Nice to meet you, Helen.
( ) （5）She is my friend, Helen. E、Good evening.
( ) （6）Good afternoon. F、Fine, thank you.
( ) （7）How are you? G、He’s Tim.
( ) （8）What’s your name? H、I’m Wang Bing.
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
