《煤矿安全规程》对井下电缆悬挂点间距有何要求？
参考答案：
水平巷道或倾斜井巷内不得超过3米；立井井筒内不得超过6米。
My parents expected too much of me. When they heard that I hadn’t passed the college entrance examination, they almost ______.
A．broke up
B．broke down
C．broke off
D．broke out
Seeing the enemy, Gary was behaving as though nothing .
A．happened
B．had happened
C．would happen
D．was happening
