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,选答句。(10%)
(1)A.Miss Lin       B.Mr Huang          C.Mr Zhao
(2)A.read books     B.Yes, I can..      C.Yes, she can..
(3)A.Yes, I do.     B.Yes, I can .       C.Yes, I can.
(4)A.I’d like tofu.B.mutton             C.Ysh, she like.
(5)A.Yes, he can.   B.No, she can’t .   C.Yes, they can..
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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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