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则下列有关比较中正确的是（   ）

根据短文内容，选择最佳答案。

Schedule a Tour

    University of South Carolina （USC) is famous for its warm southern hospitality（好客）. Schedule a visit and feel it in person. Our walking tours are led by current students, called University Ambassadors, who are looking forward to telling you what it's like to live and study in USC. Our walking tours run Monday through Friday and most are around 2 hours. The university will be closed on Tuesday, July 4, 2017 in observance of the holiday. We welcome your visit year round and will be ready for you, rain or shine. Please refer to the list below to determine which tour is best for you and remember to book at least two weeks in advance.

法律是治国之重器，法治是国家治理体系和治理能力的重要依托。要推动我国经济社会持续健康发展，不断开拓中国特色社会主义事业更加广阔的发展前景，必须全面推进社会主义法治国家建设。国家强调要加强市场法律制度建设，保护企业以法人财产权依法自主经营、自负盈亏，健全以公平为核心原则的产权保护制度，加强企业社会责任立法，完善保护劳动者的法律，法规。

结合材料，运用《经济生活》的相关知识，分析我国加强法治建设对企业和劳动者的积极影响。

下列有关病毒的叙述中，正确的是（ ）