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【单选题】
组合面域是两个或多个现有面域的全部区域合并起来形成的；组合实体是两个或多个现有实体的全部体积合并起来形成的，这种操作的命令是（）。A.
INTERSECT
B.
UNION
C.
SUBTRACT
D.
SUBTRACTION
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反馈参考答案：
举一反三
【简答题】()化原则使物流设备能发挥最大的效能,并使物流系统整体效益最优
【单选题】В 1851 г. было открыто движение по первой железной дороге __________.
A.
от Петербурга до Москвы
B.
от Владивостока до Москвы
C.
от Петербурга до Новосибирска
D.
от Владивостока до Петербурга
【单选题】She has been saving money in the past two years, so she is ___ that in the coming summer she will be able to afford a journey abroad.
A.
confiscate
B.
conflate
C.
conflict
D.
confident
【简答题】She has been saving money in the past two years, so she is ______ that in the coming summer she will be able to afford a journey abroad.A. confident
【简答题】简述IAA的酸生长理论。
【简答题】She has been saving money in the post tow year, so she is ________ that in the coming summer she will be able to afford a journey abroad.
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