企业在分析市场竞争强度的时候,主要应该分析的因素有(),()和()。
参考答案:行业的卖方密度;市场的进入难度;产品服务的差异度
Cocaine's being often used as painkillers can give rise to the________belief that it is not an addictive drug.[ ]
A. proper
B. mistaken
C. impossible
D. unsuitable