I have a _________ daughter, she is a middle school student. [ ]

A. thirteen years old

B. three-year-old

C. twelve-year-old

D. fourteen-year old

慢性肝病患者，普查发现甲胎蛋白3次阳性，肝功能正常，肝区触诊无异常，诊断为早期肝癌。

下列哪项检查对定位最有帮助

A．选择性肝动脉造影

B．放射性核素扫描

C．超声波断层扫描

D．X线断层扫描

E．以上都不是