搜索
A. B. C. D. E.
1. I went to Beijing and ate good food there.
2. He went swimming last Saturday.
3. Sarah went to Shenyang yesterday and she went skiing there.
4. Amy rowed a boat last week.
5. I bought presents for my mom.
A. B. C. D. E.
1. My father usually goes to bed at 10.
2. It’s 9:30. It’s time for math class.
3. My English teacher is tall and thin. She’s very kind.
4. I usually read books on the weekend.
5. My pen pal likes riding a bike.
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
