Which statement is right about entry route of diphtheria bacilli ?
A. fecal - oral route;
B. respiratory route;
C. sexual contact
D. blood transfusion
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Which is right about gene location of diphtheria toxin ?
A. It is in a virulent plasmid;
B. It is in the transposon;
C. It is in a R plasmid
D. It is in the prophage;
Which systemic infection of diphtheria bacilli may cause heart failure?
A. toxemia
B. septicemia
C. endotoxemia
D. bacteriemia
若已知BCWS=220元,BCWP=200元,ACWP=250元,则此项目的CPI和项目的成本绩效是()
A. 0.2,实际成本与计划一致
B. 0.8,实际成本比计划成本低
C. 0.8,实际成本超过计划成本
D. 1.2,实际成本比计划成本低
若已知BCWS=220元,BCWP=200元,ACWP=250元,如果根据偏差分析法,则此项目的SV和项目状态是()
A. 20元,项目提前完成
B. -20元,项目比原计划滞后
C. -30元,项目提前完成
D. 800元,项目按时完成