[单项选择]The challenge that newspapers faced from the website is A. the small text-ads that appear alongside search engines. B. the localization of website and more elaborate service. C. the display ads. D. the classified ads.
第25题: [单项选择]沙眼衣原体可经() A. 水及食物传播 B. 飞沫传播 C. 性传播 D. 接触传播 E. 虫媒传播 参考答案:C 答案解析:不同传染病具有不同的传播途径,切断传播途径是防止传染病的重要举措。脑膜炎球菌通常寄居于正常人鼻咽腔,在约有5%~10%的健康人鼻咽部带有本菌,流行期高达20%~70%,带菌者和患者是传染源。脑膜炎球菌