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
看图选出合适的单词。
1.—Who’s that ______ (man woman)?
—He’s Mr Jones.
2.—Where are you from?
—I’m from _______ (Canada China).
3.—Is this your _______ (father mother)?
—Yes, she is.
4.—How many eggs? 
________ (Nine Ten).
5.—Who’s that woman?
—She’s my ________ (grandmother grandfather).
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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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