学进去-教育应平等而普惠
试题
类型:词图匹配
难度系数:0.85
所属科目:小学英语
A. grow flowers                    B. tidy my room            C. use the computer          D. fix the bike
E. go to the Bird’s Nest          F. have breakfast            G. read a book                 H. climb mountains
I. have a calligraphy class       J. practice Chinese kung fu

1.(     )
2.(     )
3.(     )
4.(     )
5.(     )
6.(     )
7.(     )
8.(     )
9.(     )
10.(     )
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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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