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试题
类型:阅读判断
难度系数:0.65
所属科目:初中英语
阅读短文,根据短文内容判断下列句子的正(T)误(F)。

The Chang’e 5 robotic probe (探测器) has become China’s first spaceship to bring the country’s national flag to the Moon.

The scene of the Five Starred Red Flag against the dark sky on the grey lunar surface was taken by a camera on the Chang’e 5 robotic probe’s lander and then sent to the ground control. In Chang’e 3 and 4 tasks, the national flag was painted on the spaceship. Therefore, the flag carried by Chang’e 5 is the first Chinese national flag that has been planted on the Moon.

The system to raise the flag was designed and produced by engineers at China Space Sanjiang Group in Hubei Province. It has three parts.

Because of the strong radiation (辐射) and the terrible temperatures on the Moon, we couldn’t use traditional fabrics (面料). If we place an ordinary flag on the Moon, its colors will quickly become lighter. Designers spent more than one year choosing and testing ideal materials, and finally picked a new kind of material that can resist the very difficult conditions on the Moon.

1.The Chang’e 5 brought the flag outside the space.
2.The scene of the national flag was taken by a smartphone.
3.The flag raising system includes three parts.
4.If we place an ordinary flag on the Moon, its colors will quickly become dark.
5.The last paragraph shows us how the designers chose and tested the flag’s materials.
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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

用户名称
2019-09-19

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

用户名称
2019-09-19
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