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【单选题】
下列给出的4，不属于计算机病毒特征的是（ ）A.
潜伏性
B.
激发性
C.
传播性
D.
免疫性
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【单选题】A century ago in the United States, when an individual brought suit against a company, public opinion tended to protect that company. But perhaps this phenomenon was most striking in the case of the r...
A.
Farrell was injured because he negligently ran his engine off the track.
B.
Farrell would not have been injured if the switchman had been more careful.
C.
The court argued that the victim had accepted the risk since he had willingly taken his job.
D.
The court decided that the railroad should not be held responsible.
【简答题】光镜技术中最常用的技术是 ,HE染色法常用的染料是 和 ,组织结构与前者亲和力强的具有 ,与后者亲和力强的具有 ,与两者亲和力均不强的具有 。
【单选题】When an individual buys a car in a congested urban area, it generates
A.
a positive externality.
B.
a technology spillover.
C.
an efficient market outcome.
D.
a negative externality.