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
连一连。
(1) What time is it?                             
A.Come in.
(2) Look at the clock on the wall.
B.That’s all right.
(3) May I come in?
C.I write at nine.
(4) I’m sorry.
D.It’s eight thirty.
(5) What time do you write?                         E. OK. I see.
(6) Don’t watch too much TV.                     F. Sorry, I’m late.
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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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