学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.85
所属科目:小学英语
将下列字母与其代表的物体连线。
1. A                                   a. cat   
2. B                                   b. dog
3. C                                   c. elephant
4. D                                  d. apple
5. E                                   e. ball
6. F                                   f. hat
7. G                                  g. gorilla
8. H                            h. fish
9. I                                     i. juice
10. J                              j. igloo
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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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