小题1:The new airport is built close to the freeway, and it is __ by Bus No. 2.（可以到达的）

小题2:We must all be aware of the ____ causes of traffic accidents and act to prevent them （潜在的）

小题3:We cannot ___ the punctual arrival of trains in foggy weather.（保证）

小题4:People who don’t get their sufficient sleep are actually sending an __ to severe problems in their life.（诱因，邀请）

小题5:Jim went to answer the phone; __, Harry started to prepare lunch.（与此同时）

小题6:Both aspirin and penicillin have saved millions of people’s lives and proved ___ ___ mankind since they were invented.（对……有益）

小题7:The number of road accidents and the deaths ___ ___ those accidents has increased greatly over the past year.（由……引起）

小题8:One of the greatest benefits of Internet friendships is that they are based on common interests, ___ __ appearance or age.（而不是）

根据著作权法及相关规定，下列哪些是不受著作权法保护的客体（）

A．化学元素周期表

B．北京市交通旅游地图

C．人民日报评论员文章

D．专利复审委员会作出的无效宣告请求审查决定