学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.85
所属科目:小学英语
在Ⅱ栏中找出与Ⅰ栏相应的答语,并将其序号填入括号内。
Ⅰ                         Ⅱ
(________) 1. What’s this?                    

A.It’s a pie.
(________) 2. Would you like an egg?

B.Good afternoon!
(________) 3. Are you Liu Tao?

C.Yes, please.
(________) 4. What colour is the apple?

D.No, I’m not. I’m Su Hai.
(________) 5. Good afternoon!

E.It’s red.

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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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