建设项目环境影响评价按( )划分，可分为大气环境影响评价、水环境影响评价、土壤环境

阅读理解。

   The common cold is the world's most widespread illness, which is plagues (疫病) that people receive.

   The most widespread fallacy (谬误) of all is that colds are caused by cold. They are not. They are

caused by viruses(病毒) passing on from person to person. You catch a cold by coming into contact,

directly or indirectly, with someone who already has one. If cold causes colds, it would be reasonable

to expect the Eskimos to suffer from them forever. But they do not. And in isolated arctic regions

explorers have reported being free from colds until coming into contact again with infected people from

the outside world by way of packages and mail dropped from airplanes.

     During the First World War soldiers who spent long periods in the trenches (战壕), cold and wet,

showed no increased tendency to catch colds. In the Second World War prisoners at the Auschwitz

Concentration Camp (奥斯维辛集中营), naked and starving, were astonished to find that they seldom

had colds. At the Common Cold Research Unit in England, volunteers took part in experiments in which

they gave themselves to the discomforts of being cold and wet for long stretches of time. After taking hot

baths, they put on bathing suits, allowed themselves to be with cold water, and then stood about dripping wet (湿透) in drafty (通风的) room. Some wore wet socks all day while others exercised in the rain

until close to exhaustion. Not one of the volunteers came down with a cold unless a cold virus was

actually dropped in his nose.

    If, then, cold and wet have nothing to do with catching colds, why are they more frequent in the

winter? Despite the most pains-taking research, no one has yet found the answer. One explanation

offered by scientists is that people tend to stay together indoors more in cold weather than at other time,

and this makes it easier for cold viruses to be passed on.

    No one has yet found a cure for the cold. There are drugs and pain suppressors(止痛片) such as

aspirin, but all they do is relieve the symptoms.

1. The writer offered _______ examples to support his argument.

A. 4            

B. 5              

C. 6              

D. 3

2. Arctic explorers may catch colds when _______.

A. they are working in the isolated arctic regions

B. they are writing reports in terribly cold weather

C. they are free from work in the isolated arctic regions

D. they are coming into touch again with the outside world

3. Volunteers taking part in the experiments in the Common Cold Research Unit probably _______.

A. suffered a lot                      

B. never caught colds

C. often caught colds                  

D. became very strong

4. The passage mainly discusses _______.

A. the experiments on the common cold

B. the fallacy about the common cold

C. the reason and the way people catch colds

D. the continued spread of common colds

货物运输合同的当事人为（）。

A．托运人

B．承运人

C．国际货代

D．收货人

（二选一）【物质结构】

A、B、C都是元素周期表中的短周期元素，它们的核电荷数依次增大。第2周期元素A原子的核外成对电子数是未成对电子数的2倍，B原子的最外层p轨道的电子为半满结构，C是地壳中含量最多的元素。D是第四周期元素，其原子核外最外层电子数与氢原子相同，其余各层电子均充满。请用对应的元素符号或化学式填空：

（1）A、B、C的第一电离能由小到大的顺序为____________________。

（2）A的最高价氧化物对应的水化物分子中其中心原子采取_________杂化。

（3）已知A、C形成的化合物分子甲与B的单质分子结构相似，1mol甲中含有键的数目为__________。

（4）D的核外电子排布式是_________________，它的高价离子与B的简单氢化物形成的配离子的化学式为_______________。

（5）D的氢化物的晶体结构如图所示，写出此氢化物在氯气中燃烧的化学方程式_________________________。

道家的阴阳观点和唯物论的矛盾论观点是否统一？