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

Simon was very happy. His father ___________ him a computer. It was his birthday present. He could write emails to his friends ___________ Australia. He could do ___________ homework on the computer too. Simon wanted to learn drawing and painting on the computer, Peter taught him. Then Peter showed ___________ how to search for a lot of things on the computer. He ___________ showed Simon some computer games. And he told Simon, “Don’t play computer games too much. It is not good for your eyes.”

1.
A.buyB.buysC.bought
2.
A.inB.atC.on
3.
A.hisB.herC.my
4.
A.heB.himC.her
5.
A.tooB.alsoC.either
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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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