单项选择题
The chassis of 15 trucks are rust-stained，particularly（）near the mast house.
A.such B.this C.these D.those
单项选择题 The best way to determine if a load is within maximum lift limits is to use（）.
单项选择题 The additional cargo is to be loaded（）board our ship.
单项选择题 The actual amount of cargo loaded depends upon（）.
