学进去-教育应平等而普惠
试题
类型:完形填空
难度系数:0.40
所属科目:小学英语

We know a lot about ______. They ______ different ______. We ______ walk ______ the grass. We should ______ in the classroom. The sign ‘Danger’ ______ we ______ go into it. In the cinema or other places, we shouldn't ______ here and there. In the library or reading room, we should read books ______.

1.
A.public signB.public singsC.public signs
2.
A.meanB.meansC.meaning
3.
A.thingsB.the thingC.thing
4.
A.shouldB.canC.can’t
5.
A.inB.onC.to
6.
A.be quietB.make noiseC.keep off the grass
7.
A.is meanB.meanC.means
8.
A.mustB.canC.shouldn’t
9.
A.litterB.no litteringC.touch
10.
A.quietB.quietlyC.be quiet
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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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