需求规律是指需求量与价格()的关系。 A.正相关 B.负相关 C.零相关 D.无法确

题型:单项选择题

问题:

需求规律是指需求量与价格()的关系。

A.正相关

B.负相关

C.零相关

D.无法确定

考点:房地产估价理论与方法第三章房地产价格和价值第三章房地产价格和价值题库
题型:单项选择题

下列哪些情况中可将运动物体看成质点(  )

A.2008年北京奥运会上我国选手郭晶晶、吴敏霞以优美的空中姿态和默契的配合,夺得女子双人三米板跳水金牌

B.研究气流对足球旋转的影响时,足球可以看成质点

C.计算火车通过一座桥梁的时间时,火车可以看作质点

D.研究“神舟七号”飞船绕地球飞行的轨道时,飞船可以看成质点

题型:单项选择题

患者男,72岁,因“拟行胃癌根治术”来诊。患者5个月前患心肌梗死,有糖尿病病史,平时用胰岛素控制血糖。心电图:窦性心律,心率90次/分,右束支传导阻滞,室性期前收缩7次/分。血压150/95mmHg(1mmHg=0.133kPa)。

提示围术期有高度危险发生心脏并发症的临床因素是()

A.年龄72岁

B.5个月前患心肌梗死

C.糖尿病病史,平时用胰岛素控制血糖

D.室性期前收缩7次/分

E.右束支传导阻滞

F.血压150/95mmHg

G.胃癌根治术

题型:单项选择题

指骨X线片示,骨干中心密度减低区骨皮质膨大,边缘整齐,阴影中心有钙化点。最大可能是

A.骨囊肿

B.内生性软骨瘤

C.成软骨细胞瘤

D.成骨细胞瘤

E.嗜酸性肉芽肿

题型:单项选择题

Until late in the 20th century, most Americans spent time with people of generations. Now mid-aged Americans may not keep in touch with old people until they are old themselves.That’s because we group people by age. We put our three-year-olds together in day-care center, our 13-year-olds in school and sports activities, and our 80-year-olds in senior-citizen homes. Why?

We live away from the old for many reasons: young people sometimes avoid the old to get rid of fears for aging and dying. It is much harder to watch .someone we love disappear before our eyes. Sometimes it’s so hard that we stay away from the people who need us most.

Fortunately, .some of us have found our way to the old. And we have discovered that they often save the young.

A reporter moved her family onto a block filled with old people. At first her children were disappointed. But the reporter baked banana bread for the neighbours and had her children deliver it and visit. Soon the children had many new friends, with whom they shared food, stories and projects. “My children have never been less lonely,” the reporter said.

The young, in turn, save the old. Once I was in a rest home when a visitor showed up with a baby. She was immediately surrounded. People who hadn’t gotten out of bed in a week suddenly were ringing for a wheelchair. Even those who had seemed asleep wake up to watch the child. Babies have an astonishing power to comfort and cure.

Grandparents are a special case. They give grandchildren a feeling of security and continuity. As my husband put it, “my grandparents gave me a deep sense that things would turn out right in the end.”

Grandchildren speak of attention they don’t get from worried parents. “My parents were always telling me to hurry up, and my grandparents told me to slow down,” one friend said. A teacher told me she can tell which pupils have relationships with grandparents: they are quieter, calmer, more trusting.

小题1:Now in an American family, people can find that ____.

A.children never live with their parents

B.not all working people live with their parents

C.aged people are supported by their grandchildren

D.grandchildren are supported by their grandparents小题2:The reason why old people are left alone may be that ____.

A.the old don’t like to live in a big family

B.the young can’t get enough money to support the old

C.different generations have different lifestyles

D.the old are too weak to live with the young小题3:The fact that the reporter told us shows that ___.

A.old people in America lead a hard life

B.old people in America enjoy banana bread

C.she had no time to take care of her children

D.old people are easy to get along with小题4:Seeing a baby, the old people get excited because ____.

A.they had never seen a baby before

B.the baby was clever and beautiful

C.the baby brought them the image of life

D.the baby’s mother would take care of them小题5:Why do children not get attention from their parents?

A.Because they often make trouble and make their parents disappointed.

B.Because their parents are too busy to take care of them.

C.Because their parents have to take care of their grandparents.

D.Because their parents have been out of work for a long time.

题型:单项选择题

纸绝缘聚合度测量由测量绝缘纸在铜乙二胺溶液的粘度和铜乙二胺稀溶剂的粘度,计算比粘度,并由此推导出溶液的特性粘度,从而计算出()。

A.粘度比

B.聚合度

C.分散性

D.离合度

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