题干

欧洲太空总署大胆构想打造“月球村”:利用月球土壤3D打印居住舱,喝陨石坑冰层融化的水,吃月球泥土种出的蔬菜。计划到2030年送10位地球人到月球居住,30年后移民1000人。这表明(    )

A:意识具有目的性和主动创造性

B:人的意识能创造出新的物质

C:人们可根据需要建立新的联系

D:量的积累必然带来质的变化

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答案(点此获取答案解析)

A

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Bicycle Safety

    Operation  Always ride your bike in a safe, controlled manner on campus. Obey rules and regulations. Watch out for walkers and other bicyclists, and always use your lights in dark conditions.

    Theft Prevention Always securely lock your bicycle to a bicycle rack---even if you are only away for a minute. Register your bike with the University Department of Public Safety. It's fast, easy, and free. Registration permanently records your serial number, which is useful in the possible recovery of the bike stolen.

Equipment.

    Brakes  Make sure that they are in good working order and adjusted properly.

    Helmet A necessity, make sure your helmet meets current safety standards and fit properly.

    Lights Always have a front headlight---visible at least 500 feet in front of the bike. A taillight is a good idea.

Rules of the Road

    Riding on Campus  As a bicycle rider, you have a responsibility to ride only on streets and posted bicycle paths. Riding on sidewalks or other walkways can lead to a fine. The speed limit for bicycles on campus is 15mph, unless otherwise posted. Always give the right of ways to walkers. If you are involved in an accident, you are required to offer appropriate aid, call the Department of Public Safety and remain at the scene until the officer lets you go.

Bicycle Parking Only park in areas reserved for bikes. Trees, handrails, hallways, and sign posts are not for bicycle parking, and parking in such posts can result in a fine.

If Things Go Wrong

    If you break the rules, you will be fined. Besides violating rules while riding bicycles on campus, you could be fined for:

No bicycle registration---------------------------------$25

Bicycle parking banned------------------------------$30

Blocking path with bicycle ---------------------------$40

Violation of bicycle equipment requirement -----------$35