连一连。569847 ①28÷4②30÷6③72÷9④24÷6⑤48÷8⑥6

下列说法正确的是（　　）

A．酸性氧化物就是非金属氧化物

B．纯净物与混合物的区别是看是否只含有一种元素

C．强弱电解质的区别是溶液的导电能力的大小

D．氧化还原反应的判断依据是反应过程中元素的化合价是否发生变化

制作泡菜时加入适量白砂糖的作用是（　　）

A．使泡菜吃起来甜美可口

B．杀灭细菌和真菌

C．为乳酸菌发酵提供原料

D．为酵母菌发酵提供原料

Since we are social beings, the quality of our lives depends in large measure on our interpersonal(人与人之间的) relationships. One strength of the human condition is our possibility to give and receive support from one another under stressful conditions. Social support makes up of the exchange of resources among people based on their interpersonal ties. Those of us with strong support systems appear better able to deal with major life changes and daily problems. People with strong social ties live longer and have better health than those without such ties. Studies over types of illnesses, from depression to heart disease, show that the presence of social support helps people defend themselves against illness, and the absence of such support makes poor health more likely.

　　Social support cushions(缓和) stress in a number of ways. First, friends, relatives and co-workers may let us know that they value us. Our self-respect is strengthened when we feel accepted by others in spite of our faults and difficulties. Second, other people often provide us with informational support. They help us to define and understand our problems and find solutions to them. Third, we typically find social companionship supportive. Taking part in free-time activities with others helps us to meet our social needs while at the same time distracting (转移注意力) us from our worries and troubles. Finally, other people may give us instrumental support money aid, material resources, and needed services - that reduces stress by helping us resolve and deal with our problems.

小题1:Interpersonal relationships are important because they can ________

A．make people live more easily

B．smooth away daily problems

C．deal with life changes

D．cure types of illnesses小题2:The researches show that people's physical and mental health _______

A．lies in the social medical care systems which support them

B．has much to do with the amount of support they get from others

C．depends on their ability to deal with daily worries and troubles

D．is related to their courage for dealing with major life changes小题3:Helping a sick neighbor with some repair work in spare time is an example of ________

A．instrumental support

B．informational support

C．social companionship

D．the strengthening of self-respect小题4:What is the subject discussed in the text?

A．Effects of stressful condition.

B．Kinds of social support.

C．Ways to deal with stress.

D．Interpersonal relationships.

家用燃气有哪些基本特性？

男，20岁。因3天来高热、腹痛、腹泻，1天来头晕入院。查体：T39．4℃，面部潮红、球结膜充血，有出血斑且水肿，皮肤有细小出血点，BP60／40mmHg，血WBC16×10⁹／L，Hb165g／L，尿蛋白（+++），大便水样，镜检WBC0～2／HP。本病人抗病毒药物治疗多选用（）

A.干扰素

B.利巴韦林

C.阿糖腺苷

D.拉夫米定

E.硫唑嘌呤