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I have three friends. Mingming gets up at 6:00. Peter gets up at 6:20. Tim gets up at 6:30. But they have breakfast at the same time-at 6:50. Mingming goes to school at 7:10. Peter goes to school at 7:15 and Tim goes to school at 7:20. At 2:40, Mingming has Chinese. Peter has Chinese at 3:30 and Tim has Chinese at 3:00. Mingming and Peter do their homework at 4:40. But Tim does his homework at 5:00.
1．My friends are _______. ( )| A．Mingming and Peter | B．Peter and Tim | C．Mingming, Peter and Tim |
| A．At 6:30. | B．At 6:50. | C．At 7:00. |
| A．At 7:10. | B．At 7:20. | C．At 7:15. |
| A．He does his homework. | B．He eats dinner. | C．He has Chinese. |
| A．At 4:00. | B．At 4:40. | C．At 5:00. |
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
