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(四)民工甲将自己的一块树根交给根雕艺术家乙雕刻，但未约定雕刻的内容和权利归属。乙经反复思考和精雕细刻，创作完成一件精美的根雕艺术品。乙遂以高价将该根雕卖给收藏家丙。丙未经任何人同意。将该根雕送美术馆丁展览。 请综合分析、回答本案涉及的下列法律问题： (2005，84)关于根雕艺术家乙将该根雕艺术品卖给收藏家丙的行为，下列说法中正确的有( )。
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Passage ThreeQuestions 71 to 75 are based on the following passage:In a family where the roles of men and women are not sharply separated and where many household tasks are shared to a greater or lesser extent, male superiority is hard to maintain. The pattern of sharing in tasks and in decisions makes for equality, and this in turn leads to further sharing. In such a home, the growing boy and girl learn to accept that equality more easily than did their parents and to prepare more fully for participation in a world characterized by co-operation rather than by the “battle of the sexes”.If the process goes too far and man’s role is regarded as less important – and that has happened in some cases – we are as badly off as before, only in reverse.It is time to reassess (重新评估) the role of the man in the American family. We are getting a little tired of “Momism” – but we don’t want to exchange it for a “Neo-popism” (新式爸爸主义). What we need, rather, is the recognition that bringing up children involves a partnership of equals. There are signs that specialists on the family are becoming more aware of the part men play and that they have decided that women should not receive all the credit – not all the blame. We have almost given up saying that a woman’s place is in the home. We are beginning, however, to analyze men’s place in the home and to insist that he does have a place in it. Nor is that place irrelevant to the healthy development of the child. Which of the following is NOT true about Ford’s cars after 1913
生态系统中的能量流动遵循热力学中的______定律和能量衰变定律。
第二题：案件审理（18分） 2009年8月15日，甲县烟草专卖局根据群众举报，在吴某的烟店查获非渠道进货卷烟40条，销售账册一本。执法人员对该批卷烟进行了先行登记保存，制作了勘验笔录。由于吴某情绪激动，没有在勘验笔录上签字。待吴某情绪平静后，执法人员对吴某制作了询问笔录。吴某供述，该店烟草专卖零售许可证的持有者为何某，自己只是其雇员，之前共购进违法卷烟50条，已销售10条。但是执法人员通过查阅销售账册，发现共购进违法卷烟70条，已销售30条。执法人员对检查过程进行了录像，并对录像资料进行了相应删减。邻居王某证实吴某曾多次从外地购进大量违法卷烟，后得知王某为不能正确表达意志的精神病人。8月16日，该省烟草质量监督检测站出具了检测报告，鉴定涉案卷烟全部为真品卷烟。 根据以上案例回答下列问题： 本案的违法主体是谁为什么？（4分）
(四)民工甲将自己的一块树根交给根雕艺术家乙雕刻，但未约定雕刻的内容和权利归属。乙经反复思考和精雕细刻，创作完成一件精美的根雕艺术品。乙遂以高价将该根雕卖给收藏家丙。丙未经任何人同意。将该根雕送美术馆丁展览。 请综合分析、回答本案涉及的下列法律问题： (2005，86)对有关当事人行为的认定，下列说法中正确的是( )。
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