搜索
| | 看电视 | 打扫卫生 | 游泳 | 下棋 | 踢足球 |
| Tom | | | | | |
| Sam | | | | | |
| Lili | | | | | |
| Daming | | | | | |
| Lingling | | | | | |
( )1. Tom played football yesterday.
( )2. Sam did housework yesterday.
( )3. Lili went swimming yesterday.
( )4. Daming did housework yesterday.
( )5. Lingling played the chess yesterday.
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
