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学进去-教育应平等而普惠
试题
类型:听音,选择正确答案
难度系数:0.65
所属科目:小学英语
听句子,选择正确的答语,并将其序号写在题前的括号内。
(     ) 1. A. She likes English very much.     B. She has a round face.     C. He has short hair and big eyes.
(     ) 2. A. You are welcome.     B. No, thank you.     C. Yes, you can.
(     ) 3. A. I get up at 6:50 a.m.     B. She gets up at 7:30 a.m.     C. I have breakfast at 7:00 a.m.
(     ) 4. A. My hobby is playing the violin.     B. He likes playing basketball.     C. Peter likes beef very much.
(     ) 5. A. They want the big one.     B. They like reading.     C. They wear new clothes and get red packets.
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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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