某种风险曾经发生过一次，而且在可预见的将来还有可能发生，则根据风险发生概率的定性估测

在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，词首字母已。

     Cars are an i    1     part of life in the United States. Most of people feel that they are poor w    2    

cars. A   3     he is poor, he doesn't feel really poor when he has a car.

     Henry Ford was the man who first b    4     making cars. Maybe, he didn't know how much the car

was going to affect (影响) the United States. That made the USA a country on w__5    . And they have

helped to make the United States rich and modern.

     The car has been popular in the USA. The country is a large one. Americans like to m    6     around

in it. It is easier and cheaper to travel by car. With a car; people can go to any place without spending

too much money.

下列实验目的可以实现或操作正确的是

A．用托盘天平称取3.23 g NaCl固体

B．用10 mL 量筒量取 7.50 mL 稀盐酸

C．实验时未经洗净的滴管可直接再吸取别的试剂

D．稀释浓硫酸时，把浓硫酸沿器壁慢慢注入水里，并不断搅拌

银屑病三联疗法是指：（）

A.内服药、外用药、药浴

B.紫外线照射、药浴、外用药

C.抗生素、维甲酸、外用药

D.抗生素、维生素、静脉封闭

E.内服药、PUVA、药浴

查勘时要核实损失情况（）

A.查清受损车辆、承运货物和其他财产的损失情况及人员伤亡情况，

B.查清事故各方所承担的事故责任比例，确定损失程度

C.核查保险车辆有无重复保险情况，以便理赔计算时分摊赔款。

D.人员伤亡情况由医疗跟踪人员跟踪，可以不管，

牙周炎的基础治疗不包括

A．正确的刷牙和定期的复诊

B．洁治术和根面平整术

C．必要的咬合调整

D．拔除无保留价值的或预后极差的患牙

E．有急性炎症或伴有全身不适时的药物治疗