第12题: [单项选择]Why does the interviewee think that teaching institutions should be community-based A. Because it costs less. B. Because teachers will learn quickly. C. Because it is required by experts. D. Because the cultural patterns are diverse. 参考答案:D
第13题: [单项选择]关于条件致病菌的致病条件,下列叙述正确的是() A. 机体免疫力下降 B. 细菌寄居机体的部位发生改变 C. 机体抵抗力降低 D. 长期使用广谱抗生素引起菌群失调症 E. 以上均是 参考答案:E 答案解析:本题考查条件致病菌。条件致病菌一般不致病,当机体免疫力下降,寄居部位改变或菌群失调时方致病。