装卸货之前,打开舱盖。()A、After loading and discharging, hatch covers will be opened.B、After loading and discharging, hatch covers will be closed.C、Before loading and discharging, hatch covers will be opened.D、Before loading and discharging, hatch covers will be closed.
装卸货之前,打开舱盖。()
- A、After loading and discharging, hatch covers will be opened.
- B、After loading and discharging, hatch covers will be closed.
- C、Before loading and discharging, hatch covers will be opened.
- D、Before loading and discharging, hatch covers will be closed.
相关考题:
单选题装卸货之前,打开舱盖。()AAfter loading and discharging, hatch covers will be opened.BAfter loading and discharging, hatch covers will be closed.CBefore loading and discharging, hatch covers will be opened.DBefore loading and discharging, hatch covers will be closed.
判断题风速超过12m/s不得打开机舱盖,风速超过14m/s应关闭机舱盖。A对B错