题目内容

Questions 23-26
According to the information given in the text, choose the correct answer or answers from the choices given.
The survey covered students ______.

A. from all British universities.
B. studying a variety of subjects.
C. who were in their last year of studies only.

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税收法律关系是指征纳双方在税收分配过程中形成的（）。

在下列情况下，母亲仍应哺乳的是

该患者有大量蛋白尿，则其24h尿蛋白定量应该为

A. ＞1.5g/d
B. ＞2.0g/d
C. ＞3.0g/d
D. ＞3.5g/d

以下2题基于如下的两个关系：
执行SQL语句：SELECT*FROM R WHERE sno IN (SELECT sno FROM S WHERE cno=“c1”)的结果中的元数和元组数分别应是()。

A. 6，9
B. 3，2
C. 5，3
D. 3，3