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Halloween is a
| A．Chinese | B．west | C．China |
| A．the thirty-second | B．the thirty-first | C．thirty-one |
| A．have | B．having | C．making |
| A．is wearing | B．wearing | C．wear |
| A．has | B．loves | C．have |
| A．looks | B．would | C．is |
| A．having | B．have | C．has |
| A．trick or treat | B．Yes or No | C．good or bad |
| A．fruit | B．sweets | C．food |
| A．great | B．sad | C．bad |
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
