阋读理解 Because earthquakes happen without

题型:阅读理解

问题:

阋读理解  

       Because earthquakes happen without warning, it's important to take steps now to prepare. Because

you don't know where you will be when an earthquake happens, prepare some supplies for your home,

workplace, and car.      

       1. Water.      

       A person needs at least l/2 gallon of water daily just for drinking. Store at least l gallon of water per

person per day and be prepared for a 72-hour period. It is suggested that you buy bottled water. Keep

bottled water in its original container and do not open it until you need to use it. Also, do check the"use by" date.      

       2. Food.      

       It's always a practical idea to keep a supply of non-per ishable (不易腐烂的) food on hand. Have an enough supply of canned food, powdered milk, dried fruits, non-salted nutsnd canned juices for at least 72 hours.    

       3. Flashlights (手电筒) and spare batteries.    

       Keep a flashlight beside your bed, at your place of work, and in your car. Do not use matches or candles after an earthquake until you are sure that no gas leaks.        Prepare a battery-powered radio and

spare batteries Most telephones will be out of order, so radios will be your best source of informatin.        

       4. Clothes.        

       If you live in a cold place, you must think about warmth. You might not have heat after an earthquake. Think about your clothing and bedding supplies.      

根据短文内容,选出最佳选项回答问题。

1. Why should people prepare themselves for an earthquake?                

A. Because earthquakes can be known before they happen.                

B. Because earthquakes take place without warning.                

C. Because earthquakes usually take place in the neighborhood.                

D. Because it's people's daily work to prepare the earthquakes.  

2. About the prepared water, which description is RIGHT?               

A. A person should prepare 0. 5 gallon of water for one day.                

B. You'd better use your own containers to keep water.                

C. You'd better open the bottled water when you buy it.                

D. You shouldn't open the bottled water until you need it.  

3. You should prepare all of the following except______.               

A. powdered milk        

B. fresh vegetables                

C. dried fruits            

D. canned juices  

4. According to the article we know that _      __.                

A.we need to prepare some supplies only at home                

B. a telephone is the most important prepared thing                

C. flashlights but not matches are first used after earthquakes                

D. clothes are used to protect your head  

5. If you live in a cold place, you should prepare      ___.                

A. some warm clothes and bedding supplies                

B. some hot water                

C. some batteries                

D. some flashlights                        

考点:日常生活类阅读
题型:阅读理解

硼是第ⅢA族的元素,自然界中有许多硼化合物,如:

硼镁矿硼砂硼酸偏硼酸钠
Mg2B2O5•H2ONa2B4O7•10H2OH3BO3NaBO2
请回答下列问题:

(1)上述所列硼化合物中,硼的质量分数最高的是:______;

(2)工业上以硼镁矿为原料制取硼.该工艺的中间过程会发生反应:B2O3+3Mg=2B+3MgO,反应的氧化剂是:______;

(3)上述所得的粗硼与MgO混在一起,难以分离,工业上往往将粗硼与I2作用形成BI3(沸点210℃)然后与MgO分离,分离的方法是______;最后在1000℃左右,通过BI3热分解而得到高纯度B.

(4)硼酸是一种一元弱酸,它与水作用时结合水电离的OH-而释放出水电离的H+,写出这一变化的化学方程式______.皮肤上不小心碰到氢氧化钠溶液,一般先用大量水冲洗,然后再涂上硼酸溶液,写出硼酸与氢氧化钠反应的离子方程式______.

题型:阅读理解

一对农村夫妇抱着白喉病患儿来医院求治,因患儿呼吸困难,面部发绀,生命垂危,医师决定马上做气管切开术,但父母坚决不同意。医师反复解释劝导,患儿父母拒绝手术签字。急诊医师看到患儿病情危急,为及时抢救患儿,毅然对患儿施行了手术,患儿得救,其父母感激不尽。

该案例中,医师的行为主要是在行使何种权利()

A.自主权

B.干涉权

C.治疗权

D.诊断权

E.监督权

题型:阅读理解

网络中间商的作用有()

A.营销沟通

B.为顾客提供定制服务

C.融资

D.数码内容直接交易

题型:阅读理解

ZN63A型真空断路器上的各导电面、导电搭接处均需涂敷导电膏,各转动部位需涂敷润滑脂,各发黑件及绝缘件需擦干净,镀锌零件需用煤油或清洗液洗干净。( )

题型:阅读理解

根据《基础地理信息公开表示内容的规定(试行)》,下列基础地理信息及相关要素中,可以公开表示的有()。

A.地下河段

B.海岸线

C.拦水坝的材质、长度、宽度

D.城区急救点E.桥墩结构

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