肺脓肿的感染酋中,90%合并厌氧菌,首选的抗生素是
A.磺胺药物
B.林霉素
C.甲硝唑(甲硝哒唑)
D.青霉素
E.先锋霉素
参考答案:C
Which of the following would be permissible under Standard Ⅱ (C) , Misrepresentation()
A. Including a graph showing the Fed’s discount rates over the previous 12 months in a report that goes to clients.
B. Using excerpts from a report prepared by a well known outside research firm without acknowledgement.
C. Reporting statistics prepared by an outside firm, identifying the source but omitting caveats and qualifying statements.
关于管家基因的叙述,不正确的是
A.这些基因产物对生命全过程都是必需的
B.在一个生物个体的几乎所有细胞中持续表达
C.在个体各个生长阶段几乎全部组织中持续表达
D.在个体发育不同阶段进行表达
E.只受启动序列与RNA聚合酶相互作用的影响