应该由编制人根据具体工程的清单项目特征而分别编码的是( )编码。
A．第二级
B．第三级
C．第四级
D．第五级
参考答案：D
Though Professor Liu ____ in New York for seven years, he has never regretted moving back to Shanghai, his hometown.
A．lived
B．has lived
C．had lived
D．was living
MRI检查发现膀胱壁局限性增厚，T1WI与T2WI上均为低信号，最可能是（）
A.膀胱充盈不良所致
B.非特异性局限性肉芽肿
C.膀胱肿瘤
D.纤维瘢痕
E.特异性局限性肉芽肿
