问题
单项选择题
A bad separation makes the cargo()at its destination.
A.easier to discharge
B.more difficult to discharge
C.easierto load
D.more difficult to load
答案
参考答案:B
A bad separation makes the cargo()at its destination.
A.easier to discharge
B.more difficult to discharge
C.easierto load
D.more difficult to load
参考答案:B