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
用所给词的适当形式填空。
(1)Look at the     . How big they are !(library)
(2)Look ! The boy is     to the classroom .(run)
(3)There aren’t     exercises on the paper .(some)
(4)Children in     often play ping pong .(Chinese)
(5)    homework can you do today ?(how many)
(6)There are some small     near Tianjin .(city)
(7)Do you know     ?(where is he from)
(8)Oh , your shoes are like     .(Tom)
(9)Can you     a horse like that man ?(ride)
(10)I want to buy two bags of     for the children .(soap)
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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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