学进去-教育应平等而普惠
试题
类型:选择题
难度系数:0.64
所属科目:小学英语
根据图片提示,选择正确的单词或短语补全句子。
(1)My mother is a __________. (nurse, teacher)
(2)We __________ (fly a kite, watch a film) on Sunday.
(3)I have a __________ (brother, sister).
(4)He goes to work __________. (by bike, by bus)
(5)Jenny likes to __________ (read books, plant flowers).
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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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