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1. 在图书馆里读书。
A. You should keep the room clean.
B. You should walk around.
2. 在大街上走。
A. You should walk in the middle.
B. You should keep to the right.
3. 在桌子上画画。
A. You should take turns.
B. You should play a game.
4. 在食堂排队打饭时。
A. You should take turns.
B. You should sing a song.
5. 在电影院里看电影。
A. You should talk loudly.
B. You should keep quiet.
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
