河床中的心滩可由()形成。
A、层流,
B、紊流,
C、单向横向环流,
D、双向横向环流
参考答案:D
Diego Maradona is always considered as a ___ figure. On the one hand, he is one of the greatest football star looked up to by youngsters in the history. On the other hand, he is always a troublemaker.
A.conventional
B.controversial
C.contemporary
D.consistent
对在事故调查处理期间逃匿的生产经营单位的( ),给予降职、撤职处分。
A.主要负责人B.项目经理C.管理人员D.负责人