船舶突然快速转向或加速,不会导致船舶上的人员落水。()
参考答案:错
Everybody likes to work with _____ is reliable and easy to get on with. [ ]
A. whom
B. who
C. whomever
D. whoever
传染病的基本特征有
A.有免疫性
B.有流行性
C.有传染性
D.有病原体
E.有自限性