学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.64
所属科目:小学英语
句子配对。
[[QOrDeR]]What’s this in English?                     A The one in blue.
【小题2】Is this a book?                              B He’s my father.
【小题3】Who’s that man?                             C It’s orange.
【小题4】What color is that orange?                   D Yes, it is.
【小题5】How are you?                                 E It’s a map.
【小题6】Which boy is your brother?                   F No, it’s yellow.
【小题7】What is this?                                G It’s an orange.
【小题8】Is that jacket black?                       H Fine, thank 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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