欲比较三种药物降低乙肝病人血液中 GPT量的效果。已知病情和年龄对治疗效果有影响,将

题型:单项选择题

问题:

欲比较三种药物降低乙肝病人血液中 GPT量的效果。已知病情和年龄对治疗效果有影响,将12名男性乙肝患者按病情和年龄相近配成4组,每组3人;再把每一配伍组的3人随机分配到3个治疗组,每名患者测得治疗后的GPT下降量。

若a=0.05,则界值为()。

A.

B.

C.F0.025(2.5)

D.F0.05(2.6)

E.F0.05(2.9)

考点:公卫执业医师公卫执业医师13
题型:单项选择题

关于作用力与反作用力以及相互平衡的两个力的下列说法中,正确的是[ ]

A.作用力与反作用力一定是同种性质的力

B.作用力与反作用力大小相等、方向相反,因而可以互相抵消

C.相互平衡的两个力的性质可以相同,也可以不同

D.相互平衡的两个力大小相等、方向相反,同时出现、同时消失

题型:单项选择题

下面是一篇文章,请将标有A—G的句子插入文章标号56-60的合适位置,使这篇文章意义完整,结构连贯;其中有两个句子是多余的。

Food is life; it gives us the nourishment (营养) we need to stay alive and be healthy. __小题1:__ Brian Wansink, a professor at the University of Illinois, says we also eat certain foods because they make us feel good, and remind us of happy memories. Wansink calls this kind of food comfort food. For some people, ice cream is a comfort food. For others, a bowl of noodles soup makes them feel good.

__小题2:_ Professor Wansink believes that we connect food with important times, feelings, and people in our lives. “When I was a child, my mother made a delicious soup; I loved it. __小题3:__ And it helps me feel better,” Says one of Wansink’s coworkers.

Do men and women choose different comfort foods? Wansink’s research at the University of Illinois says “ yes”. In his study, the favorite comfort food for both men and women was ice cream. After this, men usually preferred hot, savory (香的) foods like soup or noodles. __小题4:__ Men and women like to eat comfort foods when they are happy, but women eat these foods more when they are sad or worried.

__小题5:__ About 40 percent of the comfort foods in Wansink’s study were healthy main dishes or soups and vegetables. It shows, says Wansink, that a comfort food can taste good and be good for you.

Not all comfort food is junk food.

Where can we buy this sort of food?

Sweet foods are also their preference.

How does a food become comfort food?

Usually, we eat because we are hungry or need energy.

Women like sweet things such as chocolate and cookies.

Now, I often have this kind of food when I am tired or worried.

题型:单项选择题

严复译述的《天演论》提出了“师夷长技以制夷”的思想。[ ]

题型:单项选择题

()领受凭证时自行购买和粘贴印花税票的方式来缴纳,所以是一种具有行为性质的凭证税。

题型:单项选择题

仪表厂人员进行现场校表时,由()负责停表和开表,()进行检定校验。

A.仪表厂

B.使用单位

C.仪表厂人员

D.均可

更多题库