学进去-教育应平等而普惠
试题
类型:阅读选择
难度系数:0.64
所属科目:小学英语
读短文,判断句子的正(T)误(F)。
Hello! I'm Larry. I can sing. I like musi
A.My mother can dancE.My father can play Erhu. My brother can jump. My sister can sing and dancE.What can you do?
( )1.Larry can dance.
( )2.Larry’s mother can sing.
( )3.Larry’s father can play Erhu.
( )4.Larry’s brother can’t jump.
( )5.Larry’s sister can sing and dance.
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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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