学进去-教育应平等而普惠
试题
类型:阅读选择
难度系数:0.40
所属科目:小学英语

The great scientist Deng Jiaxian is often _______ the father of Chinese atomic science. During _______ life he helped China to become a stronger and safer country.

Deng was born in Anhui Province _______ June 25th, 1924. As a child he loved to study and wanted to be a teacher like his father, _______ famous professor. But his dad wanted Deng to study science to help China become a modern country. _______ he loved his father and his country, Deng studied hard and went to university.

1.
A.callB.called
2.
A.heB.his
3.
A.onB.in
4.
A.aB.the
5.
A.WhenB.Because
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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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