学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.64
所属科目:小学英语
用be动词的适当形式填空。
[[QOrDeR]]What______his name?
【小题2】How old______those old men?
【小题3】How much______that bag?
【小题4】What color______those shorts?
【小题5】I want a blue sweater. Here you______.
【小题6】These shoes______nice.
【小题7】The hat______only 7 dollars.
【小题8】I______reading a letter.
【小题9】There______many shops here.
【小题10】I like popcorn. Popcorn______fine.
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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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