学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.85
所属科目:小学英语
用am,is,are填空:
(1)Where      you from ?I     from China .
(2)Where      he from ? He      from England .
(3)What      your mother ? She     a teacher .
(4)I    Number One .
(5)She     in Class One , Grade Two .
(6)We      good friends .
(7)It      a pear .
(8)      you sure ?
(9)     ten and ten twenty ?
(10)     it green or red ?
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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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