学进去-教育应平等而普惠
试题
类型:中英文匹配
难度系数:0.85
所属科目:小学英语
A.天气              B.好的              C.连衣裙              D.阳光充足的              E.动物   F.操场              G.马铃薯              H.起床              I.多少钱                    J.晚餐

1.potato (      )
2.sunny (      )
3.playground (      )
4.dinner (      )
5.animal (      )
6.dress (      )
7.weather (      )
8.how much (      )
9.get up (      )
10.nice (      )
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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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