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学进去-教育应平等而普惠
试题
类型:句图匹配
难度系数:0.65
所属科目:小学英语
A. The boy jumped on the bed. Then he fell off the bed.          
B. I was in Shanghai last Sunday.
C. I'm reading a book in my room.                                      
D. It was my birthday on Saturday.
E. It was raining. I was walking in the rain.                            
F. I printed this newspaper yesterday.
G. I usually get up at seven o' clock.                                     
H. He cleaned the room yesterday.

1. (        )
2. (        )
3. (        )
4. (        )
5. (        )
6. (        )
7. (        )
8. (        )
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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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