《维纳斯的诞生》是文艺复兴时期哪位画家所作（）
A、波提切利
B、达芬奇
C、凡·埃克兄弟
D、荷尔拜因
参考答案：A
I know a little bit about Italy as my wife and I ________ there several years ago.
A．are going
B．had been
C．went
D．have been
立磨振动较大原因分析？
