惰性气体保护系统仅配备于（）
A.集装箱船和滚装船
B.滚装船和油船
C.液化气船和化学品船
D.油船和液化气船
参考答案：D
Many people like to _____ a series of facts in their diary so that they can remember them. [ ]
A. set down
B. break down
C. settle down
D. calm down
表见代理
