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Tom: Mum, the summer holiday is coming.
Mum: Yes, you may.
Tom: We want to go to Xi’an.
Mum: Will you go by plane?
Tom:
Mum:
Tom: Seven days.
Mum: Okay.
Tom: Thanks, Mum.
| A．Have a nice trip! |
| B．How many days will you stay in Xi’an? |
| C．No, we will go by train. |
| D．Where do you want to go? |
| E．May I go on a trip with my friends? |
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
