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
听录音,找出你所听到的内容,将序号填在题前括号内。
(     ) 1. A. A                     B. L                           C. I
(     ) 2. A. 9                    B. f                            C. j
(     ) 3. A. DNA               B. NBA                     C. CBA
(     ) 4. A. class                     B. Miss                     C. this
(     ) 5. A. family               B. father                     C. friend
(     ) 6. A. grandpa               B. grandma               C. goodbye
(     ) 7. A. I’m Joe.               B. I’m not Joe.               C. I am Moe.
(     ) 8. A. You’re Mike.        B. You’re right.        C. Are you Mike?
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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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