学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.94
所属科目:小学英语
把下列词组的序号填入相应的位置。

A.On a bus …

B.On a train …

C.On a bike …

D.On a car …
E.On a plane …
F.On a boat…
(____) 1.You mustn’t walk around during landing.
(____) 2. You mustn’t talk to the driver.
(____) 3. You must wear a helmet.
(____) 4. You must wear a seatbelt.
(____) 5. You mustn’t put your head out of the window.
(____) 6. You must wear a lifejacket.
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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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