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Mara and Jeff watched a programme about spaceship Zhenzhou-XIII. They were interested in it. So they went to the space museum. First they wore the spacesuits—astronauts’ clothes. And then they stayed in the model of spaceship. They couldn’t walk like on the floor. Their body can fly in the air. After two hours, it’s time for lunch. But it’s difficult for them to eat and drink. The water and food can also fly away. In the evening, they slept in a sleeping bag. How fun and tired!
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B. 
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E. 
正确的顺序为：
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
