下列各句中加点成语使用正确的一项是( ) A.收入差别过大,造成骨干教师“跳龙门”,对那些师资力量本不雄厚的普通学校而言,无异于釜底抽薪,必然影响到该校的生源质量与数量。 B.近些年,某些地区拓宽马路,扩建广场,竞相上马各种形象工程的做法蔚然成风,人民群众对此意见很大。 C.在潍坊一高校任教的丈夫痴迷网络农场不能自拔,因此而一团混乱的生活让妻子忍无可忍,终于举火相向,欲与丈夫“同归于尽”。 D.广交会为企业提When he was doing the software development project, he ______ many problems that he had to solve on his own. A. came up with B. came through C. came across D. came out