角色冲突是指在社会角色的扮演中，在角色之间或角色内部发生了矛盾、对立和抵触，妨碍了角色扮演的顺利进行。
根据上述定义，下列描述不属于角色冲突的是（）。

In the preceding chapter, economic welfare was taken broadly to consist of that group of satisfactions and dissatisfactions which can be brought into relation with a money measure. We have now to observe that this relation is not a direct one, but is mediated through desires and aversions. That is to say, the money that a person is prepared to offer for a thing measures directly, not the satisfaction he will get from the thing, but-the intensity of his desire for it. This distinction, obvious when stated, has been somewhat obscured for English-speaking students by the employment of the term utility - which naturally carries an association with satisfaction - to represent intensity of desire. Thus, when one thing is desired by a person more keenly than another, it is said to possess a greater utility to that person. Several writers have endeavored to get rid of the confusion which this use of words generates by substituting 'utility' in the above sense for some other term, such as 'desirability'. The term 'desiredness' seems, however, to be preferable, because, since it cannot be taken to have any ethical implication, it is less ambiguous. I shall myself employ that term.Generally speaking, everybody prefers present pleasures or satisfactions of given magnitude to future pleasures or satisfactions of equal magnitude, even when the latter are perfectly certain to occur. But this preference for present pleasures does not - the idea is self-contradictory - imply that a present pleasure of given magnitude is any greater than a future pleasure of the same magnitude. It implies only that our telescopic faculty is defective, and that we, therefore, see future pleasures, as it were, on a diminished scale. That this is the right explanation is proved by the fact that exactly the same diminution is experienced when, apart from our tendency to forget ungratifying incidents, we contemplate the past.Our analysis also suggests that economic welfare could be increased by some rightly chosen degree of differentiation in favor of saving. Nobody, of course, holds that the State should force its citizens to act as though so much objective wealth now and in the future were of exactly equal importance. In view of the uncertainty of productive developments, to say nothing of the mortality of nations and eventually of the human race itself, this would not, even in the extremest theory, be sound policy. But there is wide agreement that the State should protect the interests of the future in some degree against the effects of our irrational discounting and of our preference for ourselves over our descendants. The whole movement for 'conservation' in the United States is based on this conviction.It is the clear duty of Government, which is the trustee for unborn generations as well as for its present citizens, to watch over, and, if need be, by legislative enactment, to defend, the exhaustible natural resources of the country from rash and reckless spoliation.Plainly, if we assume adequate competence on the part of governments, there is a valid case for some artificial encouragement to investment, particularly to investments the return from which will only begin to appear after the lapse of many years. It must, however, be remembered that, so long as people are left free to decide for themselves how much work they will do, interference, by fiscal or any other means , with the way they employ the resources that their work yields to them may react to diminish the aggregate amount of this work and so of those resources.What does, according to the author, economic welfare consist of?

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医疗纠纷是指基于医疗行为，在医方（医疗机构）与患方（患者或者患者近亲属）之间产生的医疗过错、过失、侵权等赔偿纠纷。根据上述定义，下列属于医疗纠纷的是（）。

A．新力医院觉得其竞争对手高明医院损害其声誉，将其告上了法庭
B．护士刘某与医院签订了三年的劳动合同，中途被解雇，由此双方产生了纠纷
C．万某在妙春医院住院3个月病情不见好转，后来医院也承认没有对症下药，但双方就赔偿数额不能达成一致
D．尹某在某药店买了一些药，后来得知这家药店的价格比市场上其他药店高出了2倍，尹某认为药店存在欺诈而索赔

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