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[[QOrDeR]]Nice to meet you.
| A．see | B．look after | C．look at | D．look |
| A．sell things | B．buy things | C．work in a shop | D．buy a shop |
—That's all right.
| A．The same to you. | B．You are welcome. |
| C．That's all. | D．No thanks. |
| A．me | B．I | C．my picture | D．my |
—No, she isn't. She is out.
| A．at school | B．in China | C．in the bedroom | D．at home |
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
