氟喹诺酮类药物的抗菌机理是（） 影响细菌胞壁合成。 干扰细菌胞膜的通透性。 抑制细菌DNA旋转酶活性。 抑制细菌蛋白质合成。
You work as the IT professional in an international company which is named Wiikigo. You are experiencedin implementing and administering a network operating system. You are specialized in deploying servers，configuring Windows Server 2008 Terminal services and network application services， and configuring aweb services infrastructure. There is a Windows Server 2008 server， and the Web Server （IIS） server roleis installed on the server. Multiple Web sites are hosted by the server. Since you are the technical support，you are required to set the server to make it automatically release memory for a single Web site. What's more， no other Web sites should be impacted. Which action should be performed to achieve the goal？（） From the Application Pool Defaults， the Recycling options should be changed.。 A new Web site should be created and the bindings should be edited for the Web site.。 A new application pool should be created and the Web site should be associated to the application pool.。 A new virtual directory should be created and the Physical Path Credentials on the virtual directoryshould be changed.。
根据我国《招标投标法》的规定，招标人和中标人按照招标文件和中标人的投标文件订立书面合同的完成时间，应当自中标通知书发出之日起（）日内。 15。 30。 45。 60。
外部不经济
我国社会现阶段的主要矛盾是（）。 人民日益增长的物质文化需要同落后的社会生产之间的矛盾。 人民日益增长的物质文化需要同不平衡不充分的发展之间的矛盾。 人民日益增长的美好生活需要和不平衡不充分的发展之间的矛盾。 人民日益增长的美好生活需要和落后的社会生产之间的矛盾。
因为模仿创新者只做先进技术的跟进者，导致了它具有（）的特点。
