学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.65
所属科目:小学英语
大家来帮小鸡找到它们的妈妈吧。
A                              B
(1)  How much is the pen?      
A.Bye-bye.
(2)  What do you like?     
B.I like watermelons.
(3)  Good-bye.     
C.I’d like some chicken.
(4)  May I have some ice cream?     
D.Twenty yuan.
(5)  What would you like?     
E.Sure.
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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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