A 栏
( )1. Nice to meet you!
( )2. Who’s that woman?
( )3. Is she your sister?
( )4. How are you?
( )5. Where are you from?
B栏
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同类型试题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 = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴 我要答疑
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