学进去-教育应平等而普惠
试题
类型:完形填空
难度系数:0.65
所属科目:小学英语

   To cross the road, look _______. Don’t play _______ run on the road. If you see the _______ light, stop for a while. These are what teachers and parents often tell us. We _______ only talk about these sentences. They should be deeply recorded in our hearts, so that accidents may become less and less. Let us be surrounded (被环绕) in a safe and _______ growth. We should try our best to make _______ home more beautiful!

1.
A.aroundB.leftC.right
2.
A.butB.orC.and
3.
A.greenB.yellowC.red
4.
A.shouldB.mustC.shouldn’t
5.
A.healthilyB.healthyC.health
6.
A.ourB.weC.us
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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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