调查某人群免疫水平时，各年龄组按比例抽样采血测抗体，属于（）。 A.单纯随机抽样 B

在公务员范围确定上，属于狭小范围型的国家是（）。

A．德国

B．日本

C．英国

D．美国

Back in the early 1900s, American physician Byron Robinson wrote a book proposing an interesting theory: humans actually have two brains --- one in our heads and the other in our stomachs, and the two “communicate” all the time. Interestingly, in Chinese culture, thoughts are also related to the belly in phrases and idioms like fugao (腹稿, a draft), manfu jinglun (满腹经纶, a bellyful of ideas), and yiduzi weiqu (一肚子委屈, a bellyful of complaints).

This may sound a little ridiculous at first. But try to think of a time when you were extremely nervous. Chances are that you also felt uncomfortable in your stomach, didn’t you? This is probably why people use the idiom “butterflies in one’s stomach” to refer to being nervous.

Now scientists from Canada and the US have found that our guts (肠道), if not as bright as our actual brains, are much more than just where we digest the food we eat. They also affect our emotions and even behavior, all thanks to the bacteria in them, reported Scientific American.

In the study, scientists fed timid mice stomach bacteria from mice that were more active and daring. After eating the bacteria, the timid mice grew more energetic and fearless. Sure enough, when bold mice got the bacteria from timid ones, they became more anxious. The mice’s behavior also changed when scientists disturbed the bacteria in their guts by changing their diets and feeding them antibiotics (抗生素).

“If something goes wrong in the gut, that change is reflected in the brain,” Emeran Mayer, a professor at University of California, Los Angeles, told The Huffington Post.

The brain-and-gut connection also works in the opposite way. Scientists studied children with autism (自闭症) --- a mental illness that makes people unable to socialize with others --- and found that they also have a lot of stomach problems. They have fewer types of stomach bacteria and lower totals of a few key bacteria than healthy children.

This research raises the possibility that scientists could treat patients with brain problems simply by feeding them the right food, which would be much more efficient than providing psychological therapy (疗法).

According to CBC News, you can get “good” bacteria that lift your spirits from food like yogurt while “bad” bacteria are usually in high fat and high sugar foods.

小题1:What is the author’s attitude toward Byron Robinson’s theory of two human brains?

A．Unsatisfied.

B．Doubtful.

C．Positive.

D．Negative.小题2:The author mentioned the idiom “butterflies in one’s stomach” in the second paragraph to _____.

A．describe the symptoms of nervousness

B．suggest a connection between our stomach and our emotions

C．hint at the danger of nervous feelings

D．encourage people to calm down and relax小题3:What’s the closest meaning of the underlined word “bold” in Paragraph 4?

A．anxious

B．fearless

C．energetic

D．sharp小题4:According to the article, ______.

A．people with mental illnesses are more likely to have stomach problems

B．the use of antibiotics can turn timid mice into daring ones

C．timid mice have fewer types of stomach bacteria than daring mice

D．people must consider changing their diets when they feel anxious小题5:We can infer from the article that______.

A．psychological therapy has never worked before for autistic children

B．yogurt is the best solution for anxiety problems

C．high fat and high sugar foods are responsible for many mental diseases

D．diet changes can lead to mood changes

在项目团队中没有明确的项目经理，只有一个协调员负责，团队各成员按自己在职能部门对应的任务进行工作，这样的组织形式称为（）。

A．职能式

B．强矩阵式

C．弱矩阵式

D．复合式

下列各句中，没有语病的一句是( )。

A．曹操的性格具有双重性，他的雄才大略与 * * 诈凶狠对于任何一个扮演他的演员来说都具有挑战性，也是个难得的表演机会。
B．我国计划在2011年向太空发射目标飞行器“天宫一号”的实验，这一消息引起世界各国极大关注，被全球各大媒体争相报道。
C．尽管作为欧盟成员国的希腊经济总量有限，其债务危机不足以使美国经济受到直接冲击，但是仍然会间接影响美国经济的复苏进程。
D．灾后重建三年目标任务两年基本完成的原因：一是十八个对口援建省市支援的结果。二是灾区干部群众自力更生所取得的成绩。

根据《公安机关办理行政案件程序规定》的规定，对下列案件管辖的说法正确的是（）。

A.甲、乙同为A县人，两人商定去B县打工，在B县汽车站，两人发生口角，甲将乙打伤，乙到当地派出所报案，甲趁乙报案时坐车返回了A县。B县公安局认为由A县公安局管辖更为适宜，便将案件移交A县公安局。A县公安局可以办理该案件

B.A县某公司甲、乙、丙、丁四人一起到B县出差，在宾馆房间内赌博，被人举报。B县公安局某派出所民警出警时，被出来买烟的甲、乙看见，两人打电话通知丙、丁后，先行逃回A县，丙、丁则被派出所出警人员抓获。甲、乙回到A县，听说丙、丁两人被抓后，便主动向A县公安局投案。A县公安局可以办理该案件

C.甲在A县出差吸毒，到B县后被同事向B县公安局举报。B县公安局可以办理该案件

D.A县人甲到B县出差，遇到卖淫女乙，与其发生性关系并支付费用后，甲以想与乙处对象为由，将乙带回A县，在某旅馆内发生性关系时被公安机关查获。在公安机关询问时，乙说出与甲在B县的卖淫嫖娼行为，并供认其在B县多次卖淫，A县公安局将该案交由B县公安局办理。B县公安局可以办理该案件