试题与答案

从宽带HFC网络的先进性和可靠性以及未来发展的趋向看,最佳结构是实现光纤到最后一个放

题型:单项选择题

题目:

从宽带HFC网络的先进性和可靠性以及未来发展的趋向看,最佳结构是实现光纤到最后一个放大器,即每个光接点覆盖200—300户家庭,这种结构简称为()结构。

A、FTF

B、FTLA

C、FTTZ

D、FTTC

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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题型:阅读理解

阅读理解。

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

     Swimming cycling, jogging, skiing, dancing, walking or any of dozens of other activities can help your

heart.   1  . Whether it is a structured exercise program or just part of your daily routine, all exercise adds

up to having a healthier heart. Here are some tips for exercise success.

     ☆ Choose activities that are fun and add variety. Develop several activities that you can enjoy.   2   

     ☆ Wear comfortable, properly fitted shoes and comfortable, loose-fitting clothing appropriate for the

weather and the activity.

     ☆ Find a convenient time and place to do activities.   3   . If you miss an exercise opportunity, work

activity into your day another way.

     ☆ Use music to keep yourself entertained.

     ☆   4   Decide what kind of support you need. Do you want them to remind you to exercise? Exercise

with you regularly or occasionally? Be understanding when you get up early to exercise?Spend time with the

children while you exercise? Try not to ask you to change your exercise routine? Share your activity time

with others. Ask your family members, friends or co-workers for help.

      ☆ Don't overdo it, especially at first. You can slowly increase the time and intensity (强度) of your

activities as you become more fit.    5         

☆ Keep a record of your activities. Reward yourself at times. Nothing will inspire you more than success!

A. Try to make it a habit, but be flexible.

B. They all cause you to feel warm and breathe heavily without being out of breath.

C. Be an active role model for your children.

D. That way, exercise will never seem boring.

E. If you are overweight or have a high risk of heart disease, see your doctor for medical advice

    before exercising.

F. Surround yourself with supportive people.

G. Gradually, work up to exercising on most days of the week for 30-60 minutes.

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