(单选题)

Which of the following can best summarize the main idea of the passage? ( )

A.There is a big gap between ethical practices and people’s perceptions.

B.Tech companies are facing ethical dilemma.

C.Ethics has become a hotly discussed issue in social development.

D.It is necessary for companies to hire ethics owners.

参考答案：A

参考解析：

主旨题。根据首尾原则 ... hard lessons are being learned about the wide gap between the practices of “doing ethics” and what people think of as “ethical” 可知在社会发展中，道德实践和人们的观念是有差距的。A项：道德实践和人们的观念之间有很大的差距；B项：技术公司面临道德困境，表述程度过于严重；C项：伦理问题已成为社会发展中的一个热点问题，这只是原文提到的一个方面，不能作为主旨内容，过于片面化；D项：necessary表述过于绝对，而且原文没有说雇佣ethics owners是必须的。故本题正确答案选A。

知识点：主旨题英语阅读理解通用英语