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| Jim Creen, our English teacher, have been | 1． |
| in China for more than two year. He | 2． |
| has been to many interesting places in the | 3． |
| Beijing, and he has not yet been to many other parts of China. | 4． |
| Last week he goes to Huangguoshu Waterfall. | 5． |
| People like to travel by air, but | 6． |
| Jim family think that traveling by train is the best. It’s much cheaper and | 7． |
| far more enjoyable ∧ a rushed trip by | 8． |
| air. He had a wonderful train ride | 9． |
| to Anshun after they went on to Huangguoshu Waterfall by bus. | 10． |
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
