搜索
（_______）1.Don't throw waste paper on the floor.
A.吃苹果 B.扔废纸 C.画画
（_______）2.Don't draw on the wall.
A. 画画 B.吃饭 C.洗脸
（_______）3.Don't pick flowers in the park.
A.踩踏草坪 B.摘花 C.踢足球
（_______）4.Dongdong is going to eat a cake.
A.吃蛋糕 B.吃苹果 C.喝水
（_______）5.They are in the reading room.
A.阅览室 B.广场 C.体育馆
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
