学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.65
所属科目:小学英语
1. 今天是星期一。                                          a. Who’s your science teacher?
2. 我非常喜欢我的英语老师。                         b. We have Chinese, maths and art on Wednesdays.
3. 你的科学老师是谁?                                   c. What do you often do on Saturdays?
4. 你在星期六经常做什么?                            d. It’s Monday today.
5. 在星期三我们有语文,数学和美术课。        e. I like my English teacher very much.
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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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