当变频器升到低速后，经值班员检查确认风机、电机等设备运行正常后，才能打开（）。
参考答案：进出口风阀
矮身材(shortstature)
Questions 11 to 18 are based on the conversation you have just heard.
A．She can’t afford the time for the trip.
B．She will manage to leave this month.
C．She has to change the time for the trip.
D．She hasn’t decided where to go next month.
