学进去-教育应平等而普惠
试题
类型:排序题
难度系数:0.64
所属科目:小学英语
请把Betty与Tim之间的对话重新排列,使句意通顺。(写序号)
⑴Bye!
⑵Hello, Bob.
⑶Hello! 6503794.
⑷OK. Thanks. Goodbye!
⑸Oh, sorry! He’s not at home.
⑹Hi, Betty. This is Tim.
⑺No, this is Betty.
⑻Is Bob in? Betty.
⑼Fine,thanks,Tim.
⑽How are you?
(    )—(    )—(    )—(    )—(    )—(    )—(    )—(    )—(    )—(    )
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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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