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Mum: It’s 6:30.
Mike: Oh. Time to get up.
Mum: It’s windy and cold. You’d better put on your coat.
Mike: Where’s my hat?
Mum:
Mike: Yes, it is.
Mum:
Mike: Great! Let’s eat together.
(Fifteen minutes later)
Mum: It’s 7:00 now.
Mike:
| A．Is it on your bed? |
| B．Breakfast is ready! |
| C．What time is it? |
| D．Time for school. |
| E．What’s the weather like? |
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
