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【判断题】
两个实体性之间的联系有一对一联系、一对多联系和多对多联系。而单个实体型内的联系只存在一对一、一对多联系，不存在多对多联系。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】—What's behind the door? —There must be a dog _____ behind it. [ ]
A.
to sit
B.
sit
C.
sitting
D.
to sitting
【单选题】Task 2 Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45. The boxer(拳击手) Melankomas, victor in the 207th Olympiad, 49 A.D., was from Carl...
A.
A Greek Legend
B.
Legend of the Greek Boxer, Melankomas
C.
Melankomas's Unique Boxing Style
D.
Remarkable Olympic Athlete
【简答题】广告行政管理的主要依据是 。 A法律 B法规 C相关政策
【简答题】It’s bad to sit in front of the computer the whole night.
【单选题】--Nancy's grades are really bad. --Yes, but Tom's are ______.
A.
bad
B.
worse
C.
worst
D.
well
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