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【判断题】
Lb1B5117百年一遇的洪水是指每百年发生一次的洪水。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】The CEO said that it would never be late to apologize for its poor service.
A.
much
B.
too
C.
so
D.
very
【简答题】当太阳位于春分点和秋分点时，赤道以北太阳高度角为50°和赤道以南太阳高度角为34°点的纬度分别为（）和（）。
【单选题】下图是海河流域某地局部等高线地形图。 3(2019湖南重点名校4月联考,3)当M乡人在秋分日看到太阳升起时,太阳位于 ( )
A.
正北方
B.
.正东方
C.
东北方
D.
东南方
【单选题】当太阳位于秋分点时，______。
A.
赤经与赤纬均等于0o
B.
赤经等于90o，赤纬等于23o.5N
C.
赤经等于180o，赤纬等于0o
D.
赤经等于270o，赤纬等于23o.5S
【单选题】______as it was at such a time, his work attracted much attention.
A.
Being published
B.
Published
C.
Publishing
D.
To be published
【简答题】关系中外码的值必须取空值,或等于被参照关系中某个元组的主码值, 这条规则称为 完整性规则 。
【单选题】The CEO said that it would be ________ late to apologize for its poor service.
A.
much
B.
too
C.
so
D.
very
【简答题】________ as it was at such a time, his work attracted much attention. A) Being published B) Published C) Publishing D) To be published
相关题目：
【单选题】当太阳位于秋分点时，______。
A.
赤经与赤纬均等于0o
B.
赤经等于90o，赤纬等于23o.5N
C.
赤经等于180o，赤纬等于0o
D.
赤经等于270o，赤纬等于23o.5S
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