服务接口类采用哪一种设计模式创建实例化的（）A、静态工厂模式B、抽象工厂模式C、责任

某建设工程项目通过招标投标选择了一家建筑公司作为该项目的总承包单位，业主委托某监理公司对该工程实施施工监理，在施工过程中，由于总承包单位对地基和基础工程的施工存在一定的技术限制，将此分部工程分包给某基础工程公司，在施工及验收过程中，发生如下情况：

(1)地基与基础工程的检验批和分项工程质量由总包单位项目专业质检员组织分包单位 项目专业质检员进行验收，监理工程师不参与对分包单位检验批和分项工程质量的验收。

(2)地基与基础分部工程质量由总包单位项目经理组织分包单位项目经理进行验收，监 理工程师参与验收。

(3)主体结构施工中，各检验批的质量由专业监理工程师组织总 包单位项目专业质量检 查员进行验收。各分项工程的质量由专业监理工程师组织总包单位项目专业技术负责人进行 验收。

(4)主体结构分部工程、建筑电气分部工程、装饰装修分部工程的质量由总监理工程师 组织总包单位项目经理进行验收。

(5)单位工程完成后，由承包商进行竣工初验，并向建设单位报送了工程竣工报验单。 建设单位组织勘察、设计、施工、监理等单位有关人员对单位工程质量进行了验收，并由各方签署了工程竣工报告。

单位工程竣工验收的基本要求是什么。

E

If you don’t have a college degree, you’re at greater risk of developing memory problems or even Alzheimer’s （老年痴呆）．Education plays a key role in lifelong memory performance and risk for mental disorder, and it's well documented that those with a college degree possess a cognitive（认知的） advantage over their less educated counterparts in middle and old age．

Now, a large national study from Brandeis University published in the American Journal of Geriatric Psychiatry shows that those with less schooling can significantly make up for poorer education by frequently engaging in mental exercises such as word games, puzzles, reading, and lectures．

“The lifelong benefits of higher education for memory in later life are quite impressive, but we do not clearly understand how and why these effects last so long,” said lead author Margie Lachman, a psychologist．She suggested that higher education may encourage lifelong interest in cognitive efforts, while those with less education may not engage as frequently in mental exercises that help keep the memory agile （敏捷地）．

But education early in adulthood does not appear to be the only route to maintain your memory．The study found that intellectual activities undertaken regularly made a difference．“Among individuals with low education, those who are engaged in reading, writing, attending lectures, doing word games or puzzles once a week or more had memory scores similar to people with more education,” said Lachman．

The study, called Midlife in the United States, assessed 3,343 men and women between the ages of 32 and 84 with a mean age of 56 years．Almost 40 percent of the participants had at least a 4-year college degree．The researchers evaluated how the participants performed in two cognitive areas, verbal memory and executive function --- brain processes involved in planning, abstract thinking and cognitive flexibility．Participants were given a battery of tests, including tests of verbal fluency, word recall, and backward counting．

As expected, those with higher education said they engaged in cognitive activities more often and also did better on the memory tests, but some with lower education also did well, explained Lachman．

“The findings are promising because they suggest there may be ways to level the playing field for those with lower educational achievement, and protect those at greatest risk for memory declines,” said Lachman．“Although we can not rule out the possibility that those who have better memories are the ones who take on more activities, the evidence is consistent with cognitive plasticity （可塑性）, and suggests some degree of personal control over cognitive functioning in adulthood by adopting an intellectually active lifestyle．”

57．What is the text mainly about?

A．Higher education has a better cognitive advantage．

B．Better memories result from college degree．

C．Cognitive activity does a mind good．

D．Poor education has more risk of memory declines．

58．According to the result of Margie Lachman’s study, we can conclude that ________．

A．education is responsible for the lifelong memory performance and risk for mental disorder

B．education early in adulthood can be the only route to maintain your memory

C．those with higher education did better on the memory tests than those with lower education

D．an intellectually active lifestyle does help to maintain your memory

59．What do we know about the study called Midlife?

A．Participants each were given a battery to test their memory．

B．The average age of the participants are 56 years old．

C．Participants had to perform in one of the two cognitive areas．

D．One in four of the participants had a 4-year college degree．

60．Why are the findings of the Lachman’s study promising?

A．The lower educated may have the same opportunities to keep up memory．

B．We may have ways to cure the people who have memory declines．

C．Adopting a different lifestyle can control over cognitive functioning．

D．We can find out the possibility to have better memories．

颅脑外伤、骨折累及鼻窦时，出现鼻窦积液，最常见于下列哪个鼻窦（）

A.上颌窦

B.筛窦

C.额窦

D.蝶窦

E.以上都是

在处理污水时，人们设计一种膜结构，有选择地将有毒重金属离子阻挡在膜的一侧，以降低有毒重金属离子对水的污染，这是模拟了生物膜的（）

A.识别功能

B.流动性功能

C.主动运输功能

D.选择透过性功能

现行煤分析国家标准中对同一化验室进行的多次测定称为（）。

A.平行测定

B.重复性测定