学进去-教育应平等而普惠
试题
类型:听音判断
难度系数:0.85
所属科目:小学英语
听对话,判断句子与对话内容是否一致。一致的在括号中打“√”,不一致的画“×”。
(     ) 1. Oliver's new school is big.
(     ) 2. Oliver has lunch at home.
(     ) 3. Oliver likes noodles best.
(     ) 4. Oliver often reads books in the nature park.
(     ) 5. Oliver and Ann are old 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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