单项选择题

Who had gas-masks

A．Everybody.
B．A part of the protestors.
C．Policemen.
D．Both B andC.
<上一题 目录 下一题>
热门 试题

单项选择题
Which of the following was NOT mentioned as a reason for the demonstration
A．Public transportation.
B．Public peril.
C．Pollution.
D．Disposal of wastes.
相关试题