分类：商业/理财-股票
问题：默克的股票代码是多少 
默克的代码是多少
回答：MERCK AND CO INC (MRK)
MRK 

44.25  +0.06 +0.14% 
After Hours: 44.26 +0.01 / +0.02% Vol. 5,200 
Previous Close 44.19 Bid NA 
Open 43.94 Bid Size NA 
High 44.85 Ask NA 
Low 43.68 Ask Size NA 
Volume 13.91 Mil 52 Week Range 32.75-46.55