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[[QOrDeR]]Sarah: Nice to meet you, Wu Yifan.
Wu Yifan:______ ( )
| A．Good bye, Sarah |
| B．See you, Sarah. |
| C．My name is Wu Yifan. |
| D．Nice to meet you, too. |
Mike: ______ ( )
| A．My name is Mike |
| B．Nice to meet you, too |
| C．See you. |
| D．This is Chen jie. |
Mr. Black: ______ ( )
| A．Hello, Sarah |
| B．Good morning, Sarah. |
| C．I’m Mr. Black |
| D．Good afternoon, Sarah. |
Mrs. White: ______ ( )
| A．This is Mrs. White |
| B．Nice to meet you, Mike. |
| C．Good morning, MikE. |
| D．Good afternoon, Mike. |
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
