第28题: [单项选择]人们认识最早和研究最多的缺血-再灌注损伤的器官是() A. 心脏 B. 肺 C. 肾 D. 肝 E. 脑 参考答案:A 答案解析:机体缺血再灌注损伤最常见于心脏,因临床上常对心脏病病人做冠状动脉旁路移植术,对心肌梗死病人施行溶栓疗法,以及心脏外科行体外循环,故常见缺血再灌注损伤发生。
第31题: [单项选择]Russian women had to wear protective masks as they walked in Moscow, which was ______ by a heavy smog yesterday. A. shrouded B. unveiled C. decayed D. deprived 参考答案:A 答案解析:shroud覆盖,遮蔽;unveil显露,除去面纱;decay腐烂;deprive剥夺,使丧失。