The standards of physical and medical fitness between those persons seeking to start a career at sea and those seafarers already serving at sea are ______.
A.difficult to meet
B.different
C.not different
D.sameB
正确答案是
The standards of physical and medical fitness between those persons seeking to start a career at sea and those seafarers already serving at sea are ______.
A.difficult to meet
B.different
C.not different
D.sameB
正确答案是