问题
单项选择题
有利于细菌在体内扩散的因素是()
A.荚膜
B.菌毛
C.透明质酸酶
D.M蛋白
E.T蛋白
答案
参考答案:C
解析:透明质酸酶又称扩散因子,可分解结缔组织中起黏合作用的透明质酸,使细胞间隙扩大,通透性增加,因而有利于细菌及其毒素向周围及深层扩散。
有利于细菌在体内扩散的因素是()
A.荚膜
B.菌毛
C.透明质酸酶
D.M蛋白
E.T蛋白
参考答案:C
解析:透明质酸酶又称扩散因子,可分解结缔组织中起黏合作用的透明质酸,使细胞间隙扩大,通透性增加,因而有利于细菌及其毒素向周围及深层扩散。
Passage 3
Which of the following is not true about the Nokia-Yahoo deal a. It covers the mid-priced cell phone. b. It is dominated by high-priced cell phone. c. Some Nokia models have been available in the market in different areas. d. The deal was first announced in January.