学进去-教育应平等而普惠
试题
类型:单词拼写
难度系数:0.65
所属科目:小学英语
根据句意及首字母或汉语提示完成句子。
1.There are many English______________ (课程)for us to choose.
2.Is there a____________ (可能的)chance of success?
3.My mother is ill, so I have to stay at home______________ (代替) of going to school.
4.___________(曾经)we lived in London.
5.You must act carefully according to these_______________ (指示).
6. She asked me to a____________ the meeting with her.  
7. I want to f___________ the empty bottle with some apple juice.
8 —What do the letters UN s__________ for? 
—United Nations.
9. The computer is such a useful t_____________.
10. Can you help me p____________ the walls blue?
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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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