扩张型心肌病的主要体征是()
A.第三心音
B.心房颤动
C.第三心音奔马律
D.呼吸困难
E.心脏扩大
参考答案:E
Tom was walking along the riverside when he heard someone calling him from behind. He turned around_______ found nothing.
A.but
B.and
C.so
D.or
在创卫检查中公共场所卫生管理档案主要包括哪些内容?