题干

在周代分封制下,墓葬有严格的等级规定。考古显示,战国时期,秦国地区君王墓葬规模宏大,其余墓葬无明显等级差别;在经济发达的东方六国地区,君王、卿大夫、士的墓葬等级差别明显。这表明

A:经济发展是分封制度得以维系的关键

B:秦国率先消除分封体制走向集权统治

C:分封制中的等级规定凸显了君主集权

D:东方六国仍严格遵行西周的分封制度

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B

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    It's important to develop the healthy habits in your daily life. The following will help you become healthier and keep perfect shape.

    Eat properly. A healthy diet is very important for everybody. Breakfast is the most important meal in a day. Doctors suggest that students' breakfast should include fruit, eggs, milk, rice or noodles, because these can offer them necessary energy, help them listen carefully in class and keep them healthy. Eat enough for lunch and little for supper. But remember that too much sugar is bad for your teeth and blood. You shouldn't have too many sweet snacks and desserts in your diet, even though such food tastes delicious.

    Keep off germs(病菌). Daily tooth cleaning reduces the amount of germs which will spread diseases. Germs in the mouth arc likely to enter the blood and cause illness, even heart disease. Even if you're not sick, always remember to cough or into your arms instead of your hands because hands can spread germs to others when you touch something else. Besides, washing hands is necessary after going to the toilet or before having a meal. And you'd better rub both hands while washing them.

    Exercise regularly. Regular exercise can improve your moods and balance. What's more, it's good for bones. There are many forms of exercise: walking or running for about 30 minutes a day playing ball games twice or three times a week, swimming or dancing often. You can choose your favorite to practise regularly. You will not only feel energetic but also think better after doing exercise.

    Stay connected. Having regular communication with friends is the key to reducing stress. And sharing happiness and sadness, exchanging information with others can also help improve memory. Having a friend or a circle of friends can help you feel good.

The____to keep fit

Eating properly

You should have proper breakfast because it can____you with necessary energy.

You should have enough for lunch and little for____.

Sweet snacks and desserts arc tasty____.you shouldn't eat too much.

Keeping off germs

It's necessary for you to____your teeth every day, cough or sneeze into your arms' and wash your hands often to stop germs from____.

____regularly

You will feel____and think better after doing exercise, so you can choose your favourite sports to do.

Staying connected

It can help you feel____stressed when you communicate with your friends and it is also useful in____memory.