胸水、腹水等标本含菌量通常较少,为提高阳性检出率不可采用如下哪种方式处理()
A.溶解
B.离心
C.过滤浓缩
D.采集较大量标本
E.37℃保藏24小时后接种培养
参考答案:E
对于开放式基金来说,如果是非上市的,投资者可以通过基金管理公司和委托商业银行、证券公司等的柜台,进行基金份额的申购和赎回。( )
用适当的关系代词that, which, who, whom, whose填空
1. Here comes the girl _____ pronunciation is the best in our class.
2. Those are the things _____ I lost in the street yesterday.
3. He is the doctor _____ we often talk about.
4. She missed the things and persons _____ she loved.
5. We may go to our own library to look up any information _____ we need.