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
对话连线
(1)Does Li Ming have a surprise for Danny?                       a. Li Ming gives Danny a kite.
(2) What’s the surprise?                                      b. Good-bye!
(3) It’s time to say good-bye.                                   c. Yes, Li Ming has a surprise for Danny
(4) Good-bye!                                                  d. Yes, I want you to remember China.
(5) Oh! It’s a little dragon!                       e. Don’t forget to write.
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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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