单项选择题：学校体育是学校教育的重要组成部分，是（）的基础。A、全民体育 B、竞技体育 C、终生体育

题型：单项选择题

当事人就有关合同内容约定不明确的，且不能达成补充协议的，质量要求不明确的，按国家标准、行业标准履行；没有国家标准、行业标准的，要按照( )履行

A．普通标准

B．企业标准
C．通常标准或符合合同目的的特定标准
D．地区标准

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题型：阅读理解

Once a baby cries, the parents will go to see what happened as soon as possible. According to a new study, a baby’s cry can make adults react very quickly, even if they are not related(相关的).

Oxford University researchers used a game called Whack-a-mole for the study. The game needs people to hit one buttons(按钮). The players must react as quickly as they can to hit the button that lights up at random(随机的). It is a game that requires speed and accuracy(准确度).

The study included 40 men and women volunteers aged 19 to 59. Some of them had sons or daughters but none had a baby at the time. They played whack-a-mole after listening to different sounds, including babies’ crying, the crying of adults in trouble and birds’ song that sounds like babies’ crying.

The volunteer’ scores were higher after listening to the sound of crying babies. Men and women had similar scores. The results showed that a crying baby gets special attention.

“Few sounds make people react quite like the cry of a baby,” said Morten Kringelbach of Oxford’s psychiatry department, who led the study.

He added that a baby’s cry can increase adults’ heart rate and blood pressure. This is understandable, because in the course of human evolution(进化), taking care of babies has always been an important job for adults. When a baby is hungry or feeling bored or unwell, it will cry. As a result, human brains and bodies develop a special reaction to a baby’s cry.

小题1:According to the passage, how many volunteers took part in the study?

A．80

B．40

C．19

D．59小题2:In the passage, the underlined word react means__________.

A．表演

B．打击

C．反应

D．演示小题3:The game “whack-a-mole” shows__________.

A．a baby’s cry can get special attention from adults

B．men and women have different reaction speed and accuracy

C．adults without babies react more quickly to a baby’s cry

D．women react to a baby’s cry more quickly than men小题4:According to the passage, a baby’s cry__________.

A．can get the same attention from adults as the birds’ song

B．is the noisiest sound

C．can increase adults’ heart rate and blood pressure

D．is good for its health小题5:From the last paragraph, we learn that_________.

A．taking care of the younger babies was the most important thing in the past

B．human brains and bodies have developed to take care of babies

C．baby cries are a good way make adults react quickly

D．baby cries have developed a lot during the course of human evolution

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题型：多选题

在真空中A、B两点分别放置等量异种电荷，在电场中通过A、B两点的竖直平面内对称位置取一个矩形路径abcd，如图所示，现将一电子沿abcd移动一周，则下列判断正确的是（　　）

A．由a→b电场力做正功，电子的电势能减小

B．由b→c电场对电子先做负功，后做正功，总功为零

C．由c→d电子的电势能一直增加

D．由d→a电子的电势能先减小后增加，电势能总增加量为零

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题型：多项选择题

对市场风险可能给证券公司造成的损失，证券公司一般根据市场波动情况及交易所的信息披露和风险提示，采取如下（）措施进行控制。

A.调整担保品范围及品种

B.调整可充抵保证金有价证券的折算率

C.调整保证金比例

D.调整维持担保比例

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题型：多项选择题

远源杂交育种中，杂交后代性状分离的特点为（）。

A.分离规律不强

B.分离类型丰富并有向两亲分化的趋向

C.分离世代长、稳定缓慢

D.分离规律强

E.分离世代短

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学校体育是学校教育的重要组成部分，是（）的基础。A、全民体育 B、竞技体育 C、终生体育

题目：

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