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【判断题】
集合 与集合 的关系是≥A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】Which of the following, if newly discovered, would most seriously weaken the authors argument concerning the importance of virgin-soil epidemics in the depopulation of Native Americans?
A.
Evidence setting the pre-Columbian population of the New World at only 80 million.
B.
Spanish tribute records showing periodic population fluctuations.
C.
Documents detailing sophisticated Native American medical procedures.
D.
Fossils indicating Native American contact with smallpox prior to 1492.
E.
Remains of French settlements dating back to the sixteenth century.
【单选题】According to the authors, what is the single most important mandate of the European Central Bank?
A.
Promote international trade for countries within the European Union
B.
Price, in euros, all products for sale in the European Union.
C.
Promote price stability within the European Union.
D.
Establish an EMU trade surplus with the United States .
【单选题】Which of the following statements is most consistent with the authors attitude?
A.
Improvement in nutrition was easier to achieve than provision of better medicine and washable underclothing.
B.
No doctor at that time could have saved the life of Nathan after the boil was found.
C.
Effective medicine played a more important role in reducing disease and death than better hygiene and nutrition.
D.
The industrial revolution has not improved the health of ordinary people as much as the rich.
【简答题】认沽权证是指发行人发行的，约定持有人在规定期间内或特定到期日，有权按约定价格向发行人购买标的证券的有价证券。 （ ）
【简答题】权证是指标的证券发行人或其以外的第三人发行的，约定持有人在规定期间内或特定到期日有权按约定价格向发行人购买或出售标的证券，或以现金结算方式收取结算差价的有价证券。 （ ）
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