学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.94
所属科目:小学英语
选出与图片相符的句子,在前面括号里打对勾。
(1)( ) A. She is my mother .( ) B . He is my father .
(2)( ) A. I come from Britain. ( )B. I come from China.
(3)( ) A. Pleased to meet you .( ) B. I’m sorry .
(4)( ) A. She is my sister . o( ) B. It is a cat .
(5)( ) A. Let’s play a game. ( ) B. Let’s go home .
(6)( ) A. He is a man . ]( ) B. She is a woman .
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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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