将部件、组件、零件连接在一起组合成整台机器的操作过程称为()。
A.总装配
B.组件装配
C.部件装配
D.整体装配
参考答案:A
After the earthquake passed away, all the villages and towns were _____. And no being was seen.
A. in ruin B. in ruins C. at ruins D for ruins
男性,50岁。因结肠癌于3个月前手术治疗时输血800ml,术前肝功能正常,HBs-Ag(-),近1个月来略感消化不良,检查ALT380U/L,AST290U/L,TBIL46μmol/L。
下列检查有助于诊断的是()
A.抗-HAV-IgM
B.乙型肝炎病毒指标两对半
C.HCV-RNA和抗-HCV
D.HDAg抗-HD-IgM
E.抗-HEV