单项选择题
In battery charging rooms，ventilation should be provided（）.
A.at the lowest point B.near the batteries C.at the highest point D.only when charging is in progress
单项选择题 If passengers are on board when an abandon ship drill is carried out，they should（）.
单项选择题 I would be very much（）if you could arrange for a radio technician to come on board as soon as possible for my radar repair.
单项选择题 I hope you don’t mind（）the radar for us in a short time.
