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【简答题】
数据库中基本关系有哪些性质?
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反馈参考答案：
举一反三
【简答题】室内明敷管道平行安装：冷、热水管上、下平行敷设时，冷水管应在热水管（），垂直平行敷设时，冷水管应在热水管（）。
【单选题】Suppose that we have identified three important systematic risk factors given by exports, inflation, and industrial production. In the beginning of the year, growth in these three factors is estimated...
A.
2.95%
B.
4.95%
C.
6.55%
D.
7.40%
【多选题】Risk factors are out of your control, which include:________(This question may have more than one correct answer.).
A.
race or ethnicity
B.
family history of diabetes
C.
Being 45 and older
D.
A couch potato lifestyle
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