目前诊断小肝癌的最佳方法是（）
A.AFP
B.B超
C.肝穿刺活检
D.CT
E.X线肝血管造影
参考答案：D
It's nearly time for class to start. The teacher _____ be here soon. [ ]
A. can
B. should
C. shall
D. need
型钢轧制中宽展总大于延伸。
