VRP清除设备配置并恢复到出厂状态，应该如何操作？
VRP显示启动配置文件的命令是什么？如果修改下次启动配置文件？
Which statement is not right about exotoxins?
All are protein, .
B. Specific action on tissue is determined by subunit A.
C. They interfere with physiological activities of host cells,
D. They can be used to make toxoid.
Which one does not belong to the categories of exotoxin based on action?
A. Enterotoxin;
B. Cytotoxin;
Cardiotoxin;
D. neurotoxin
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