题目内容:
Theauthorthinksthatthe0ptimismtheoryisderivedfrom
A.Americans’culturalprideinovercomingeverything. B.thebiologicalplausibilityofwillfulcontrolofcancer.
C.theassumedconnectionofmoodwithsomeillnesses.
D.thescientificresearchesinthel970sand’80s.
参考答案:
答案解析: