学进去-教育应平等而普惠
试题
类型:改错
难度系数:0.64
所属科目:小学英语
修改病句。
[[QOrDeR]]Zoom and Zip swims in the winter.           (      ) 改为 (     )
【小题2】It’s always sun and cool.                   (      ) 改为 (     )
【小题3】Winter is to cold for me.                   (      ) 改为 (     )
【小题4】She can makes a snowman.                (      ) 改为 (     )
【小题5】He do morning exercises every day.          (      ) 改为 (     )
【小题6】Why do you like summer?So I like summer vacation.
(      ) 改为 (     )
【小题7】Which seasons dose Miss White like best?     (      ) 改为 (     )
【小题8】I can eats many fresh fruits in autumn.        (      ) 改为 (     )
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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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