病毒（virus）

[名词解释] 病毒粒子（病毒个体virus particle）

[问答题] 病毒（Virus）基本特征有哪些？

[名词解释] 滤过性病毒（Filterable virus）

[单选题]关于灭活的仙台病毒（Sendi virus），下列哪项有误（）A . 是一种常用的细胞融合诱导剂B . 仙台病毒受体广泛存在于各类细胞C . 融合效率较高D . 为病毒融合剂的代表E . 即使灭活不完全也不会感染细胞

[单选题]引起疯牛病和人类克-雅病、库鲁病等的病原体是A．病毒(virus)B．类病毒(viroid)C．拟病毒(virusoid)D．朊粒(prion)E．衣原体(chlamydia)

[单选题]A computer virus is a computer program that is created to make and spread (72) of itself.(72) A．programsB．virusC．copiesD．files

[单选题]Virus Security Software is designed to detect, eliminate or quarantine computer viruses before they are able to harm a computer or server networked system.A．AntiB．InvadeC．InroadD．Aggression

[单选题]Virus Security Software is designed to detect, eliminate or quarantine computer viruses before they are able to harm a computer or server networked system.A．AntiB．InvadeC．InroadD．Aggression

[单选题]What is known about the influenza virus?A． It was first found in a group of very old birds.B． All the different strains can be found in wild birds.C． It existed over 100 million years ago.D． It can survive in many different places.

[单选题]A．nti- virus software protects your computer from viruses by(75)your computer's memory and disk devices.A．deletingB．changingC．scanningD．replacing