依次填入下列各句横线处的成语，最正确的一组是(　　)(1)歌手姚贝娜离世后遗体遭记者偷拍事件，使记者的职业操守又成了大家关注的热门话题，说道________的新闻圈，里面假货也不少：假记者、假身份等屡见不鲜。(2)建设资源节约型、环境友好型社会要注意________。目前要着重解决影响社会经济发展，特别是严重危害人民群众健康的水污染、空气污染加剧问题。(3)近日，石家庄市已在经二路部分路口对闯红灯等“中国式过马路”现象进行处罚，但不少行人仍然________，尽管前面是红灯，左右有来车，还是冒险穿过马路。(4)对一篇规范的论文，因版面限制而去砍综述、删注释，实在是________的不智之举。

He returned to his country after the war was (结束).

I ________ more careful in that quiz. I made too many stupid mistakes.

To qualify yourself for this kind of new job, Irecommend that you ________ some online courses.

In some cases，different approaches ________ the same scientific problem lead to conflicting theories