学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.85
所属科目:小学英语
1. How many teachers are there in your school?              a. After school.
2. Who wants to be a dentist?                                         b. Yes, I will.
3. How long will Mr Black stay there?                            c. Sixty.
4. Could you find the zebra crossing?                            d. We sang and danced.
5. When are they going to meet?                                  e. Peter.
6. Will you play with me?                                                f. For a week.
7. Why is Linda so happy?                                                g. Yes, I could.
8. What did you do last Children’s Day?                           h. Because it’s her birthday today.
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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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