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
我会补全对话. (15分)

Tom : Good afternoon ,Jack .
Jack : Good afternoon .What do you have on Wednesdays ?
(1)Tom : ____
(2)Jack :  Great!__ __
Tom :  I often play ping-pong .
Do you like playing ping-pong?
(3)Jack : _______ And who’s your PE teacher ?
(4)Tom :  _________  His class is funny .
Jack : I know ._______
(5)Tom : Potatoes and beef .
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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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