铁索体是固溶体，有固溶强化现象，所以性能为硬而脆。( )
参考答案：错
You cook ____________ than John.[ ]
A. quickly and well
B. quick and good
C. more quickly and better
D. much quickly and better
诊断最可能为
A．细菌性肝脓肿B．阿米巴肝脓肿C．阿米巴肝脓肿继发细菌感染D．肝癌E．肝炎并发化脓性胆囊炎
