【简答题】After his recovery from the illness, he made up his mind to give up smoking for good.
【简答题】发生误机(车、船)事故的原因主要有哪些?
【简答题】When he had grown up in a slum in New York, He made up his mind to be a millionaire.=> ____ up in a slum in New York, he made up his mind to be a millionaire.
【单选题】He made up his mind to smoking.
【简答题】汽车排放污染物主要有:()气体、()气体和()气体;柴油车还要多一点()。
【单选题】He made up his ______ to study hard.
【单选题】_______ greatly by what he had heard and seen, he made up his mind to stand on his own feet again.
【简答题】(1)为了调查某班学生的身高情况,利用系统抽样的方法,样本容量为40.这个班共分5个组,每个组都有8名学生,他们的座次是按照个子高矮进行编排的.小王是这样做的,抽样距是8,按照每个小组的座次顺序进行编号,你觉得这样抽取的样本具有代表性吗? (2)为了调查某路口一个月的交通流量情况,小刘采用系统抽样的方法,样本距为7,从每周中随机抽取一天,他正好抽取的是星期一,这样他每个星期一对这个路口的交通流量进...