题干

衡量城市化水平的最重要指标是(   )

A:城市人口数量的多少

B:城市数目的多少

C:城市占地面积的大小

D:城市人口比重的大小

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D

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Habits to Be a Highly Effective Student

    Some students are able to get straight A's and at the same time serve as the president of three clubs. However, some students struggle to keep their GPA (Grade-Point Average) above a 3.0____Although it's true that everyone's IQ is different, good study habits are very important. Here5re several habits you should adopt to get good grades.

    ____ If you haven't had a planner (规划薄), get one. Many people use their computers and smartphones to make a schedule. The problem with that approach is that they are major distractions (分心的事物). Instead, get an old-fashioned paper and pen planner.

    Create a weekly schedule____Include time that will be spent eating, sleeping and doing anything not related to school work. That way you know exactly how much you can accomplish each day.

    Take frequent, short breaks. Taking a break from studying for 15 minutes every hour will help keep you refreshed____ If you don't take a break, you may find yourself daydreaming or even falling asleep. Take some time for some water, a snack or a quick chat with a friend.

    Take care of yourself. During final exam week, it is common for students to fall behind on sleep and meals. Make sure you get a good night's sleep and have regular meals. Studying while hungry or sleepy is ineffective and will slow you down in the long run. Also try to make time for friends and family____

A. Keep things organized.

B. Keep away from your computers.

C. Of course, not everyone needs breaks.

D. Our brains are not meant to work for hours nonstop.

E. Having a good support system will help with all the stress.

F. And they seem to spend all of their time in studying.

G. Then under each day, make a list of things to do each hour.