(______) 1. I go to bed at ______.
A. 9:45 B. 9:30
(______) 2. —What's the time?
—______
A. It's ten past nine. B. It's ten to nine.
(______) 3. —When do you get up?
—______
A. At twenty past six. B. At twenty past seven.
(______) 4. —How many times can you jump in a minute?
—______
A. Twenty-nine times. B. Twenty-five times
(______) 5. —______
—Thirty.
A. How many times can you bend your knees in a minute?
B. How many English words can you write in a minute?
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