根据第一段的“Problems start when animal viruses are able to infect people as well, a process known as zoonosis.(当动物病毒也能感染人类时,问题就开始了,这一过程被称为人畜共患病)”可知,当病毒从一只猴子传给一个男孩时,这个过程就被称为人畜共患病,故选B。 (2)题详解: 细节理解题。根据第...
What are the types of disease-causing agents? There are many types of disease-causing agents. Five common disease-causing agents include viruses, bacteria, protozoans, fungi, and parasitic worms. Prions are also disease-causing agents.What is a Disease-Causing Agent? There are a lot of compone...