搜索
Ken, Ann and Jack are all from London. They are now in Beijing. They did different things last Saturday. Ken watched the Beijing Opera in the morning. He washed clothes in the afternoon. Ann went to Tian’anmen Square at six o’clock. At night she played table tennis. Jack visited a farm in the morning. On the farm, he cleaned the farm house and watered the vegetables. They all had a wonderful weekend.
1．Ken, Ann and Jack are now in London.2．Ken watched the Beijing Opera in the morning.
3．Ann went to the Great Wall at six o’clock.
4．On the farm, Jack cleaned the farm house and watered the vegetables.
5．They all had a bad weekend.
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
