SQL查询不包括( )。
A．联合查询
B．传递查询
C．参数查询
D．子查询
参考答案：C
With the nuclear crisis worsening in Iran, the world's attention is fixed again on is called the Middle East．
A．which
B．that
C．what
D．it
中肾旁管发育异常可导致（）。
A.异位肾
B.多囊肾
C.双输尿管
D.脐粪瘘
E.双子宫
