机动车仪表板上（如图所示）亮表示发动机可能机油量不足。
参考答案：对
There were lots of people _____， and not one of them offered to help.
A．standing watching
B．standing to watch
C．stood watching
D．stood to watch
国家总体规划、省级总体规划和区域规划的规划期一般为( )年。
A．3
B．5
C．10
D．20
