学进去-教育应平等而普惠
试题
类型:判断题
难度系数:0.64
所属科目:小学英语
根据短文判断正误。

Hello, I'm Sam. I can jump far. I can play football. Amy is my sister. She can run fast. But she can't jump far. Daming is my friend. He can't jump high. But he can ride fast. Lingling is my friend too. She can't jump far. But she plays basketball well.

[[QOrDeR]]Sam can jump high. (_____
【小题2】Amy can run fast. (_____
【小题3】Lingling can jump far. (_____
【小题4】Daming can jump high. (_____
【小题5】Amy and Lingling are Sam's friends. (_____
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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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