cellwhich根据下列短文，回答{TSE}题。 Despite the fact that today viruses(病毒)are
(1)【◆题库问题◆】：[单选] 根据下列短文，回答{TSE}题。 Despite the fact that today viruses(病毒)are known to cause cancer in animals and incertain plants，there exists a great reluctance to accept viruses as being of importance in humancancer．