病毒感染导致细胞转化的机制是()
A.细胞染色体受损
B.病毒早期蛋白质抑制细胞的合成代谢
C.细胞溶酶体受损
D.病毒的出芽释放损伤细胞膜
E.病毒蛋白对细胞的毒性
参考答案:A
下列哪一项不是类风湿关节炎的关节外表现
A.皮下类风湿结节
B.Felty综合征
C.巩膜炎
D.面部对称性水肿性红斑
E.皮肤溃疡
The required testing for a specific task has been completed and passed. The customer is not confident of the test and requests an additional modified test, this situation indicates inadequate ______ .
A.control procedures
B.audit review
C.assurance funding
D.quality plan development