学进去-教育应平等而普惠
试题
类型:选择题
难度系数:0.94
所属科目:小学英语
听录音,选出你所听到的单词或短语。(10分)
(  )(1)A.school        B. subject        C. Science
(  )(2)A. Maths         B. many           C. Monday
(  )(3)A. fan          B. fun            C. fly
(  )(4)A.see           B.sit             C. six
(  )(5)A. aren’t      B. Art            C. can’t
(  )(6)A. Music        B. make           C.milk
(  )(7)A. listen        B. let            C. lesson
(  )(8)A. welcome       B. come           C.colour
(  )(9)A. back to       B. go to          C. Me too
(  )(10)A. Chinese      B. sandwich       C. table tennis
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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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