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
1. what                                                            a. 信,字母
2. old                                                        b. 小姐
3. letter                                                           c. 也,太
4. name                                                         d. 什么
5. please                                                        e. 老的,旧的,...岁的
6. down                                                      f. 请
7. Miss                                                         g. 名字
8. panda                                                       h. 向下
9. hello                                                         i. 熊猫
10. too                                                         j. 你好
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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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