(
A. The cap is under the chair. A. The dog is in the box.
B. The ball is on the chair. B. The dog is on the box.
C. The cap is on the chair. C. The dog is under the box.
(
A. This is the map of China. A. Row a boat.
B. This is the map of Shandong. B. Drive a car.
C. This is the map of Beijing. C. Bounce a ball.
(
A. Put your hand under the desk.
B. Put your hand on the desk.
C. Put your hand in the desk.
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