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学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.65
所属科目:小学英语
选择正确答句,并将大写字母填写在括号内。
______) 1. Where’s the computer room?              
A.It’s 79 yuan. 
______) 2. Do you have a library?
B.It’s on the second floor.
______) 3. How many students are there in your class?
C.Yes, we do.
______) 4. What’s the weather like in Beijing?
D.It’s 12 o’clock.
______) 5.What time is it?
E.No, they aren’t.
______) 6. How much is this skirt?
F.Forty -five.
______) 7. Can I help you?
G.Yes. These shoes are nice.
______) 8. Whose pants are those?                   H. They’re tomatoes.
______) 9. What are these?                       I. They are your father’s.
______) 10. Are those carrots?                      J. It’s cool 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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