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【简答题】
在动态转储中，利用转储文件只能将数据库恢复到转储过程中的某个状态，且转储文件中的数据可能不一致，只有和【12】文件综合起来使用，将数据库恢复到一致状态。
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【单选题】In Unite 10, w hich of the following is not true of e-commerce impacting to the international trade.
A.
Internet effectively opens markets that were previously closed.
B.
D eveloping countries with higher Internet penetration import more from high-income countries than do developing countries where penetration is low.
C.
T he Internet will likely promote trade much in the same way as lifting other trade barriers would.
D.
E -commerce have a significant impact on trade in services.
【简答题】从事体育锻炼的主要心理效益有哪些?
【简答题】信用卡同时具备 与 两种功能。
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