During the examination we are required to stay in our seats, keep our eyes on our work,      to anyone.

A．instead of speaking

B．rather than speak

C．and not to speak

D．but would not speak

图1、图2再现了的我国某一时期的历史场景。你认为该历史时期应是 [ ]

图1 1966年红卫兵在 * * 广场	图2大字报铺天盖地