题干

一位送报员每天都要为一单元的居民送报,他上楼走30分钟的时候还有一层到顶楼,下楼时仅用25分钟就走完了,已知下楼速度是上楼速度的1.5倍,这个单元共有(   )层

A:4

B:5

C:6

D:3

上一题 下一题 0.0难度 选择题 更新时间:2019-07-22 12:01:27

答案(点此获取答案解析)

C

同类题4

任务型阅读

    Tips to Increase Your Productivity

    Want to get more done in your day? Of course you do. ____The good news is that everyone can increase the amount of tasks they accomplish in a day. Here are some tips to help you have a more productive day.

    Make a plan for your day. Make sure you know how you want your day to go in advance, even before you start. ____ To work best, create the next day's plan the night before so that every morning you spend time performing, not planning.

    Break large tasks down into bits accomplished easily. Do you have a large project that's just so big that you keep putting it off? Or maybe you're just unsure of where to begin, so you put it off. ____Therefore, you will feel a sense of accomplishment as you check the items of your list.

    Always set your priorities (优先事项). ____Figure out what must be done, do that first and rank the rest of your work according to importance. If you don't get to the items at the end of your list, it won't be a big problem, and you can do them another time.

    ____ If you are the most productive in the morning, that's when you should hit it hard and do as much as you can. If you work better in the afternoon, take care of some things like emails in the morning and then accomplish the important projects in the afternoon. Keep on top of your work habits, and you'll be more productive.

A. Reward yourself if you are productive.

B. This can provide you a roadmap for the day.

C. Be aware of when you are the most productive.

D. It's tough to meet depressed people who are productive.

E. It's important to accomplish the most important tasks first.

F. A good way is to break the project down into more manageable ones.

G. To stay competitive in any industry, you need to improve your productivity.

同类题5

阅读材料,回答问题。

 材料一:20世纪90年代以来,经济全球化趋势进一步加强。经济全球化是社会生产力和科学技术发展的客观要求和必然结果。跨国公司有力地促进了世界经济的发展和全球化进程。                                                             

                ——川教版《世界历史》九年级下册

 材料二:美国的波音公司是世界上最大的飞机制造公司。波音公司的总部在美国的西雅图市,波音公司在美国有自己的总装厂和一些主要部件的生产厂和研发中心。但是,一架设备先进的飞机由许许多多的零部件组成,为了能以最低的成本得到质量最好的零部件,波音公司在全世界范围内组织零部件生产厂,如波音757—200的发动机就由英国工厂制造。中国的工厂也为波音飞机生产部分重要配件……

     ——人教版《世界历史》九年级下册

材料三:发达国家与发展中国家人均国内生产总值的差距,由1983年的43倍,扩大到目前的60多倍。

  ——中图版《世界历史》九年级下册

材料四:中国加入世界贸易组织不仅使自己从中得益,而且为世界经济贸易的发展作出了自己的贡献。

                    ——温家宝

材料五:全球化是发达国家用来打开发展中国家市场的“敲门砖”,是新殖民主义的一种形式,因此发展中国家应该团结起来,抵制全球化。

   ——江时学《发展中国家怎么办——拉美国家的实践》