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【单选题】
关系表中的每一横行称为一个A.
B.
字段
C.
属性
D.
码
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】On Sundays there are a lot of children playing in the park, ______ parents seated together joking.
A.
their
B.
that
C.
whose
D.
which
【单选题】On Sundays there are a lot of children playing in the park, _parents seated together joking.
A.
their
B.
that
C.
whose
D.
Which
【单选题】on Sundays there are a lot of children playing in the park, _____ parents seated together joking.
A.
their
B.
that
C.
whose
D.
which
【简答题】根据植物对光照的要求可以分成、、三类。
【单选题】On sundays there are a lot of children palying in the park, _______ parents seated together joking.
A.
their
B.
that
C.
whose
D.
which
【简答题】框架柱抗震等级二级，顺锚固方向长1600mm，混凝土强度等级C30;框架梁非抗震，混凝土强度等级C25，梁底配钢筋B18，问锚入支座的长度是( )mm。 A 594 mm B 1550 mm C 890 mm D 750 mm
【单选题】On Sundays there are a lot of children playing in the park, ______ parents sit together joking.
A.
their
B.
whose
C.
which
D.
that
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