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问题 多项选择题

有关神经系统的常用术语（）

A.神经核、神经节均属灰质

B.白质泛指神经纤维聚集区

C.起止、行程和功能基本相同的一束神经纤维称为一个神经纤维束

D.神经是由功能相同的神经纤维组成，无不同功能纤维成分

E.灰质泛指神经元胞体及其树突集中区

答案

参考答案：C, E

解析：在中枢神经系统和周围神经系统中，由于神经元的胞体和突起聚集的部位和排列方式的不同而有不同的术语。 1.灰质和白质 （1）在中枢神经内，神经元的胞体及其树突聚集的部位，色泽灰暗，称为灰质。位于大脑和小脑表层的灰质，称为大脑皮质和小脑皮质。 （2）在中枢神经内神经元轴突集中的地方，因多数轴突具有髓鞘，颜色苍白，称为白质。 2.神经核和神经节 （1）神经核：在中枢神经白质内的灰质块，其内聚集有形态和功能相同的神经元胞体，称为神经核。 （2）神经节：在周围神经，神经元胞体集聚的地方，形状略膨大，称为神经节，如脑、脊神经节。 3.纤维束和神经 （1）纤维束：在中枢神经白质内，起止、行程和功能相同的神经纤维集聚成束，称为纤维束或传导束。 （2）神经：在周围神经，神经纤维集合成粗细不等的集束，由不同数目的集束再集合成一条神经。每条纤维、每个集束和整条神经的周围都包有结缔组织被膜。

单项选择题

中国传统饮食十分丰富。19世纪中后期，在沿海主要城市开始出现西餐，吃西餐成为当时有钱人的一种时尚。这主要是因为( )。

A．伴随着民族工业的发展，吃西餐成为资产阶级的生活追求
B．鸦片战争后，通商口岸的开放使西方文化随之传入
C．西方殖民者涌入中国，实行同化政策
D．对中国人来说西餐比中餐更有吸引力
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问答题

Learning to save money when you’re young is an important lesson and a good habit, and saving is a skill that everyone needs. Many people-adults included-do not have a good sense of saving for the long run.
I have been lucky to learn this lesson early because I have had a grass-cutting business since I was 10 years old. Of the money I make I spend about 10 percent and save the other 90.
Making sure you save and don’t spend too much is a good way to build up wealth. I have put my earnings in a bank. Many teens I know spend all the money they earn so it never has a chance to grow. Young people should realize that their teenage years are a great time to begin saving.
At high school many parents pay for almost everything, so your expenses can be small. If you have a job, you should have fun with some of the money. But you should also save some so that it will grow. Then you can begin planning for your future. When you spend money, you not only lose that money, but also lose the interest you could have earned by saving it.
After high school, college is expensive and then "real" life begins, with expenses such as food and rent. If you can hold onto a good percentage of the money you earn as a teen, going to college and buying a house will be much easier. ______, the more time the money has to grow. If you are in your thirties without any savings, you will always have to struggle. The earlier you begin saving, the easier it is to create a nest egg.
Later in life it can be hard to start saving because general costs of living are more expensive and you may only have enough to pay your bills. If you want to buy a house and have a family, you need money to start with, which comes from saving.
Many say money cannot make you happy, and this is true. But money can help you to lead a secure life.
Saving early will mean you will have to work for fewer years when you are older. It will also allow you to spend time doing the things that you want to do.
In addition to this, it will mean you can live the way you want to without worrying.

Which sentence in the passage is the closest in meaning to the following one
As long as you save early, you’ll do less work to live well at your old age.
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