第16题: [单项选择]细菌的侵袭力不包括() A. 胶原酶 B. 溶菌酶 C. 黏附素 D. 链激酶 E. 菌毛 参考答案:B 答案解析:细菌的侵袭力指病原菌突破机体的防御功能,在体内定居、生长、繁殖并蔓延扩散的能力。构成细菌侵袭力的因素有细菌的荚膜、黏附素和侵袭性物质,病原菌表面的荚膜和黏附素(如菌毛)等可以帮助细菌黏附于宿主细胞表面
第36题: [单项选择]Mrs. Taylor has ______ 8-year-old daughter who has ______ gift for painting. - She has won two national prizes. A. a; a B. an ;the C. an ;a D. the 参考答案:C 答案解析:have a gift for…有做……的天赋,相当于have a talent for。