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【单选题】
气象条件及具变化不仅影响人的生理健康,对心理情绪的影响也非常明显.有利的气象条件使人情绪高涨,心情舒畅;不利的气象条件使人情绪低落,懒惰无力,甚至导致心理及精神病态和行为异常.研究表明,高温,高湿,阴雨以及一些异常天气事件,都不利于人的心理健康.组织的一份资料表明,上世纪的厄尔尼诺现象使全球约10患上抑郁症,精神病发病率上升8%.究其原因,是该现象引起全球范围的气候异常和天气灾难,超过部分人的心理承受能力,导致其出现坐卧不安,思维迟钝等精神异常状况.这段文字意在说明:A.
异常天气会对人的精神状况产生不利影响
B.
抑郁症与气候异常、天气灾难有一定关系
C.
有必要深入研究厄尔尼诺等异常气象条件
D.
古代”天人合一”的说法有一定的科学道理
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举一反三
【单选题】A learning curve relates ________ to ________ and is a case of ________ returns.
A.
output per time period; long-run marginal cost; dynamic decreasing returns
B.
output per time period; long-run marginal cost; dynamic increasing returns
C.
unit cost; cumulative production; dynamic increasing returns
D.
unit cost; cumulative production; dynamic decreasing returns
E.
labor productivity; education; increasing marginal returns
【单选题】Reinhart Marcs manages a portfolio whose monthly returns follow a distribution with a kurtosis measure of 4.2. Relative to a portfolio with normally distributed returns, Marcs’s portfolio has a:
A.
higher chance of extreme upside returns and higher chance of extreme downside returns
B.
lower chance of extreme upside returns and higher chance of extreme downside returns.
C.
higher chance of extreme upside returns and lower chance of extreme downside returns.
【简答题】A．Any astronaut returns from the universe is safe. B．Any astronaut returns from the universe suffers a lot. C．We can assume that an astronaut is safe from his bad looks. D．We cannot assume that an ast...
【单选题】A learning curve relates ________ to ________ and is a case of ________ returns.
A.
unit cost; cumulative production; dynamic increasing returns
B.
output per time period; long-run marginal cost; dynamic increasing returns
C.
unit cost; cumulative production; dynamic decreasing returns
D.
output per time period; long-run marginal cost; dynamic decreasing returns
E.
labor productivity; education; increasing marginal returns
【简答题】The returns generated by Losers rose gently in this year, meanwhile the returns by Climbers increased greatly and Winners abruptly.
【简答题】A．recruits B．regards C．relics D．returns
【简答题】A．Any astronaut returns from the universe is safe. B．Any astronaut returns from the universe suffers a lot. C．We can assume that an astronaut is safe from his bad looks. D．We cannot assume that an ast...
【简答题】超额收益(excess returns)
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