【题目】Friendship can never be a trade; ______, it needs the most thorough and unprofitable concept.
A. in additionB. by contrastC. in returnD. by chance
在线课程【答案】B
【解析】
考查介词短语辨析。句意：友谊永远不能变成一个交易，相反，它需要最纯粹最无利益的理念。A. in addition除此之外；B. by contrast相反；C. in return作为回报；D. by chance偶然地。 by contrast“相反”符合句意。故B选项正确。