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1．问对方是不是苏海时，应该怎样说？ ( )
| A．Are you Su Hai? | B．She’s Su Hai. |
| A．Good afternoon, Miss Li. | B．Good morning, Miss Li. |
| A．He’s my friend. | B．He’s my friend too . |
| A．Good afternoon, Miss Fang. | B．Goodbye, Miss Fang. |
| A．Sam, this is my sister. | B．This is my sister Sam. |
| A．He’s my friend. | B．She’s my friend. |
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
