搜索
| A. It’s eight o’clock now. The students are exercising. B. —What do you do after school on Tuesday, Lisa? —I play ping-pong. C. —What time does Peter get up? —He gets up at 6:30. D. —Do you play basketball on Thursday, Dan and Lily? —No, we play volleyball. E. —It’s 9:45 now. Is your sister sleeping! —Yes, she is. F. —What time do you go to school, David? —At 7:15. |
1．
2．
3．
4．
5．
6．
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
