抑郁，愤怒，敌意与焦虑的心理状态是一种疾病倾向人格
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个人对健康的观念往往决定其健康状态
A. 对
B. 错
行为发生不但与价值和实现的可能性有关，而且与实现的时间有关，说的是行为的
A. 强化模式
B. 时间价值期望模式
C. 健康意识模式
D. 个人控制力模式
With which of the Ten Principles of Economics is the study of international trade most closely connected? ( )
A. People face tradeoffs.
B. Trade can make everyone better off.
C. Governments can sometimes improve market outcomes.
D. Prices rise when the government prints too much money.
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