首页/ 题库 / [单选题]正常菌群变为条件致病菌是因为的答案

正常菌群变为条件致病菌是因为

单选题
2021-09-01 23:31
A、细菌的毒力增强
B、正常菌群细菌的寄居部位改变
C、由外源性病原菌引起新的感染
D、接种疫苗
E、使用微生态试剂
查看答案

正确答案
B

试题解析

相关题目
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

条件“性别=‘女’ Or  工资额>2000”的意思是
正常菌群转化为机会性致病菌的条件不包括
正常菌群变为条件致病菌是因为
正常菌群转化为条件致病菌的因素有()
正常菌群在_______、_______、_______条件下可引起疾病,成为条件致病菌
Mainly east 3 or 4 partly cloudy to overcast occasional rain()slowly south moderate or good.
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire,()the claimant proves that the fire arose from fault or neglect on the part of the carrier,his servants or agents.
下列除哪项外,均为正常菌群的致病条件()
Shutdown price(or point,or rule) 停业价格(或停业点、停业原则)
翻译:With Average or With Particular Average(WA or WPA)()
什么叫微生物的正常菌群?试分析肠道正常菌群与人体的关系。
若设定的条件表达式为“<60 Or>100”表示( )。
若设定的条件表达式为“<60 Or>100”,则表示( )。
广告位招租WX:84302438

免费的网站请分享给朋友吧