题型:填空题 2岁男孩,患5次肺炎,查体,胸骨左缘第3~4肋间可闻及Ⅲ级全收缩期杂音,X线检查示左心室增大,肺动脉段突出,肺血管影增粗,主动脉影较小。该2岁男孩,可能的诊断()A.肺动脉狭窄B.动脉导管未闭C.法洛四联症D.房间隔缺损E.室间隔缺损 查看答案
题型:填空题 I think you must be mistaken about seeing him at the theatre; I’m sure he abroad all week.A.isB.wasC.has beenD.had been 查看答案
题型:填空题 —______ does your mother go for a walk? —Every afternoon.A.How longB.How oftenC.How muchD.How many 查看答案
题型:填空题 下列有关ISSC证书将失效描述正确的是()①未在规定的期限内进行相关审核;②证书未按规定进行签注;③船舶变更船旗国后;④持有ISSC证书的船舶实质性更换了对该船承担经营管理责任的公司。A.①②对B.①③对C.②③对D.①~④ 查看答案