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It was Sunday yesterday. Jack and Xiaoyong didn't go to school. They went to the Science Museum together. They saw many pictures of planets (行星). The pictures were very interesting. They also saw some pictures of astronauts (宇航员). Armstrong was the first man on the moon. He was from the US. Yang Liwei was China's first man in space. There were some models of spaceship in the museum. Jack and Xiaoyong were interested in them. They made a model of the spaceship by themselves. They were very happy.
1．Yesterday was ______. ( )| A．Saturday | B．sunny | C．Sunday |
| A．school | B．the Science Museum | C．space |
| A．planets | B．astronauts | C．A and B |
| A．Liu Yang | B．Yang Liwei | C．Armstrong |
| A．the space | B．the museum | C．the spaceship |
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
