学进去-教育应平等而普惠
试题
类型:句图匹配
难度系数:0.65
所属科目:小学英语
看图,读句子,为下列句子选择相对应的图片。
A.           B.           C.    
D.           E.    
1.The books are on the teacher’s desk. (      )
2.My grandpa is a farmer. (      )
3.Let’s go to the living room and watch TV. (      )
4.The little boy is short and strong. (      )
5.I have two English books. (      )
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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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