房室传导阻滞
参考答案：
房室传导阻滞是指房室交界区脱离了生理不应期后，心房冲动传导延迟或不能传导到心室。可发生于房室结、希氏束及束支等不同部位。
Liu Xiang won the gold medal of men's 110m hurdles at the 16th Asian Games, ________ the title
of the event with 13.09 seconds. [ ]
A. claimed
B. claiming
C. has claimed
D. to claim
细胞穿刺法适合于（）
A．活检和手术标本
B．淋巴结、肝、肺
C．胸腔积液、腹水、脑脊液
D．培养细胞
E．外周血和胸腹水中的淋巴细胞的分离
