物业查验的基本途径有文字资料了解，向有关人员了解和( )等。
A．听买家讲
B．现场实地查看
C．看电视
D．听其他人员讲
参考答案：B
It's high time that we _____ measures to stop selling polluted vegetables. [ ]
A. must take
B. take
C. took
D. will take
在同一个圆里，所有的半径都______，所有的直径都______．
