学进去-教育应平等而普惠
试题
类型:选择题
难度系数:0.64
所属科目:小学英语
找朋友
A. No, I didn't.
B. It's on the 31st of Oct.
C. Yes, please.
D. All right.
E. I visited a farm with my son.
F. No, you can't.
G New Year 's Day.
H. You’re welcome.
[[QOrDeR]]Can I go there?  (    )
【小题2】Which festival is in January?  (    )
【小题3】What else did you do?  (    )
【小题4】Open mine for me, please.  (    )
【小题5】When’s Halloween?  (    )
【小题6】Thank you very much.  (    )
【小题7】Would you like a puppet as a present?  (    )
【小题8】Did you watch TV yesterday evening?  (    )
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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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