学进去-教育应平等而普惠
试题
类型:听音,选择听到的内容
难度系数:0.85
所属科目:小学英语
听句子,找出你所听到的单词,本题读一遍。
(      ) 1. A. forever                       B. never                         C. clever
(      ) 2. A. hair                            B. passport                      C. airport
(      ) 3. A. basketball                    B. baseball                      C. football
(      ) 4. A. hope                           B. hospital                       C. holiday
(      ) 5. A. film                            B. field                           C. future
(      ) 6. A. leave                           B. learn                           C. laugh
(      ) 7. A. raining                         B. evening                       C. morning
(      ) 8. A. July                            B. September                    C. October
(      ) 9. A. high                            B. light                            C. right
(      ) 10. A. same                           B. came                           C. name
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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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