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It was a fine Saturday morning, Ma Xiaotiao and Tang Fei went to the Great Wall with their teacher. At eight they were in a big bus to the Great Wall. There were some people in the bus, and there were two Americans in the bus too. They were talking about the changes of China. At about nine o’clock, they got to the Great Wall.
1．Ma Xiaotiao and Tang Fei went to the Great Wall on a _____. ( )| A．rainy day | B．fine Saturday morning | C．Sunday morning |
| A．forty | B．six | C．some |
| A．Americans | B．English | C．Chinese |
| A．Talking about the changes of America. | B．Talking about the changes of China. |
| C．Talking about the changes of England. | |
| A．7 | B．8 | C．9 |
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
