消费品市场细分标准一般可分为( )。
A.生理标准
B.地理标准
C.行为标准
D.心理标准
E.人口标准
参考答案:B,C,D,E
患者出现下列哪种情况时常提示有厌氧菌感染()
A.大量脓痰
B.咳出痰液有恶臭味
C.痰中带血
D.有持续存在的湿性啰音
E.咳嗽伴有高热
Man deep can go to school now. UNICEF has paid for her _______. [ ]
A. education
B. vacation
C. competition
D. invention