操作票应由操作人填写、签名,()检查、签名,()审核签名后执行。
参考答案:监护人;值长
引起Ⅰ度房室传导阻滞的主要原因是:()
A.心肌炎
B.发热
C.肾炎
D.急性风湿性心脏炎
E.先天性心脏病
It is the third time that he ____ the first prize in the competition.
A.wins
B.won
C.has won
D.had won