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
完型填空。

Look! There ____ many kites in the sky (空中). They are red, yellow, ____ blue. I like ____ kites very much. I usually fly kites ____ my brother. We often fly our kites ____ Sundays. I can fly very ____, but My brother ____. I often ____ him fly kites.

1.
A.isB.areC.has
2.
A.andB.orC.but
3.
A.flyB.fliesC.flying
4.
A.toB.withC.and
5.
A.inB.onC.at
6.
A.goodB.niceC.well
7.
A.canB.doesn’tC.can’t
8.
A.helpsB.helpC.helping
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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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