Many people catch a cold in the springti

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问题:

Many people catch a cold in the springtime or fall. It makes us wonder… if scientists can send a man to the moon, why can't they find a cure for the common cold? The answer is easy. There are actually hundreds of kinds of cold viruses out there. You never know which one you will get, so there isn't a cure for each one.
When a virus attacks your body, your body works hard to get rid of it. Blood rushes to your nose and cause a block in it. You feel terrible because you can't breathe well, but your body is actually eating the virus. Your temperature goes up and you get a fever, but the heat of your body is killing the virus. You also have a runny nose to stop the virus from getting into your cells. You may feel miserable, but actually your wonderful body is doing every- thing it can to kill the cold.
Different people have different cures for Colds. In the United States and some other countries, for example, people might eat chicken soup to make themselves" feel better. Some people take hot baths and drink warm liquids (流汁). Other people take medicine to stop Various symptoms (症状) of colds.
There is one interesting thing to note" some scientists say taking medicines when you have a cold is actually bad for you. The virus stays in you longer because your body doesn't have a way to fight it and kill it. Bodies can do an amazing job on their own. There is a joke, however, on taking medicine when you have a cold. It goes like this:
It takes about one week to get over a cold if you don't take medicine, but it takes only seven days to get over a cold if you take medicine.
Title
How Much You Know About the Common (76) ______
Introduction
◆ People catch a cold (77) ______ in spring or fall.
◆ A (78) ______ of cold viruses exist everywhere.
◆ It is hard to find a cure for each cold.
The symptoms of
the common cold
◆ The body's blood as well as its temperature (79) ____, causing a fever.
◆ You will find that you have some difficulty (80) ____
◆ You have a runny nose, which makes you feel miserable.
The ways of (81)__
with the common
cold
◆ Drinking chicken soup to help you (82)____
◆ Taking a hot bath and drinking warm liquids.
◆ Taking some medicine.
(83) ____ by
scientists
◆ Taking medicine when having a cold will do (84) ____ to the body.
◆ Taking medicine or not will take you one week to (85) ____ the common cold.
考点:序数词
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现已证实,当我们的大脑在休息时——比如坐在椅子上发呆、躺在床上睡觉,或接受了麻醉,各个脑区之间仍在不停地传递信息。这种不间断的信息传递被称作大脑的默认模式。它所消耗的能量是我们拍打苍蝇,或有意识地对其他外在刺激作出反应时所耗能量的20倍。实际上,我们有意识去做的大多数事件,比如吃饭和演讲等,都是对大脑默认模式下基准神经活动的背离。
对文段理解正确的一项是( )。

A.大脑默认模式是有意识的神经活动
B.人躺着休息时,很多神经活动仍在进行
C.人们有意识做的事都是对大脑默认模式的背离
D.大脑在休息时是传递信息最快的时候

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一辆质量为2.0t的小轿车驶过半径为90m的一段圆弧形桥面,重力加速度g取10m/s2.求:

(1)若过凹形桥,汽车以20m/s通过桥面最低点时,对桥面的压力是多少?

(2)若过凸形桥,汽车以10m/s通过桥面最高点时,对桥面的压力是多少?

(3)汽车以多大的速度通过凸形桥面的顶点时,对桥面的压力刚好为零?

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对于保守医密的下述提法中有误的为()

A.1949年《日内瓦协议法》也有明确规定

B.《希波克拉底誓言》早就明确提出过

C.我国古代传统医德中缺少这种要求

D.毛 * * 在《纪念白求恩》一文中对此做过专门论述

E.我国现行医德规范都有明确要求

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下列关于电影表演里的后现代,说法不正确的是()。

A.布莱希特表演体系属于后现代

B.它要求生活和表演很接近

C.周星驰版的《西游记》属于这个风格

D.它主张让观众意识到这是表演

题型:完形填空

下面关于边坡坡度叙述正确的是()。

A、边坡坡度指边坡的高度与水平间距的比

B、边坡坡度多用m:1表示

C、m一般指坡度系数

D、坡度系数是边坡坡度的负数

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