第7题: [单项选择]心包积液() A. 左室扩大,流出道增宽,室间隔及左室后壁运动减弱 B. 室间隔非对称性肥厚,舒张期室间隔厚度与左室后壁之比≥3:1 C. 心前壁之前和心后壁之后有液性暗区 D. 瓣叶有赘生物及瓣叶穿孔 E. 舒张期二尖瓣前叶呈圆拱状,后叶活动度减弱,交界处融合,瓣叶增厚和瓣口面积减小 参考答案:C 答案解析:心包积液指心包腔内积聚过多液体,M型或二维超声心动图中均可见液性暗区以明确诊断。
第8题: [单项选择]There are a series of large-scale wind patterns (all over) Earth (are called) prevailing winds that (have a direct) effect (on weather) and climate. A. all over B. are called C. have a direct D. on weather 参考答案:B
第31题:[多选题]在使用带电清扫机械进行清扫前,应确认( )。 A. A.清扫机械工况(电机及控制部分、软轴及传动部分等)完好 B.B.绝缘部件无变形、脏污和损伤 C.C.毛刷转向正确 D.D.清扫机械已可靠接地 参考答案:ABCD
第32题: [单项选择]All the guests were invited to attend the wedding __________ and had a very good time. A. feast B. congratulations C. festival D. recreation 参考答案:A 答案解析:[译文]所有的客人都被邀请参加婚宴,而且玩得很开心。
[题解]名词辨义:feast“盛宴,宴席;节日”;congratulations“祝贺,恭喜;贺词(pl.)”;festival“节日,喜庆日,