以下哪项是急性风湿热风湿活动的证据:()
A.瓣膜病
B.皮下结节
C.ASO大于500U
D.血沉增快,CRP阳性
E.心电图可见ST段下移及T波平坦或倒置
参考答案:D
--- ?
--- They’re fine, thank you.
A.How are you
B.Who are you
C.What are they
D.How are your mother and father
有机污染物有:碳氢化合物、()、致癌物及其它形成COD、BOD等耗氧性有机物质。
A.空气清洁剂
B.清洁剂
C.喷雾剂
D.洗涤剂