1. [单选题]In the navigation,_______cause the shafting over load most easily
A. stopping the main engine suddenly
B. changing the main engine running direction suddenly
C. the sailing from the shallow water area to the deep water area
D. the ship's trim too much
2. [单选题]The chief foreman asked the stevedores not to forget to use separation nets to avoid________ different lots of cargo
A. mix in
B. mix with
C. mixing up
D. mixing into
