女性患者，19岁。出现阵发性左侧肋腰痛，向左下腹放射，此时最有意义的检查是
A．泌尿系超声
B．血常规
C．尿常规
D．CT
E．造影
参考答案：A
He has left his book here on _____, so that you can read it.
汇
A．purpose
B．intention
C．aim
D．meaning
