Their products enjoy 30 percent of the market in this country because both the quality and

问题补充：

Their products enjoy 30 percent of the market in this country because both the quality and their service are fine.

A. share

B. profit

C. possession

D. advantage

答案：

(答案→)A. share

B. profit

C. possession

D. advantage

解析：考察名词辨析,share份额profit利益possession财产advantage长处,句意是他们的产品拥有30%的市场份额因为他们的质量和服务都很好,故选择A。