可吸入颗粒物的直径大小是（）。 A. B.≤10μm C.≥5μm D.1～5μm

学校书法班有60人，美术班的人数是书法班的3倍，美术班有（    ）人，美术班转走a人后，

还剩（    ）人。

患者女，45岁。月经先后无定期，量少、色淡、腰膝酸软，除选取三阴交、关元、肝俞为主穴之外，还应配以（）。

A.期门、太冲

B.肾俞、太溪

C.膻中、内关

D.血海、隐白

E.地机、足三里

People who are cheerful and relaxed are less likely to suffer from colds. It’s possible that being full of vim and vigor helps the body fight illnesses, say the researchers from Carnegie Mellon University (CMU) in Pittsburgh.

“We need to take more seriously the possibility that a positive emotional style is a major player in disease risk,” says psychologist Sheldon Cohen, the study’s lead researcher. 

In a previous study, Cohen and his colleagues found that people who tended to be cheerful and lively were least likely to develop sniffles, coughs, and other cold symptoms(症状).   

Those findings were interesting, but they didn’t prove that a person’s attitude affects whether he or she gets sick. Instead, it was still probable that a person’s underlying personality is what matters.

Evidence suggests, for instance, that certain people are naturally more likely to be outgoing and optimistic, with high self-respect and a sense of control over life. This would mean that who we are, not how we feel, finally decides our chances of catching colds.

To figure out which mattered more (personality or emotions), the CMU team interviewed 193 healthy adults. The researchers talked to each person over the phone every evening for 2 weeks. They told the researchers about the positive and negative feelings they had experienced that day.

The results showed that everyone in the study was equally likely to get infected. Their symptoms, however, differed depending on the types of emotions that they had reported over the previous 2 weeks.

Among those who reported good moods and had been infected with the flu virus, for example, 28 percent developed coughs and stuffy(堵塞)noses. On the other hand, those symptoms struck 41 percent of people who had been less positive. Scientists argue about whether negative emotions or positive emotions have a stronger effect on how healthy we are. For now, it can’t hurt to look on the bright side more often than not!

小题1:What is the text mainly about?

A．how to get rid of colds

B．Attitude determines life

C．Smiles turn away colds

D．Different opinions about colds小题2:The word “full of vim and vigor” underlined in Paragraph 1 probably means_______.

A．ignorant

B．well-informed

C．energetic

D．in low spirits小题3:According to the finding a leading factor of catching colds should be one’s _______.

A．health.

B．personality.

C．quality

D．mood小题4:By saying the last paragraph, the writer intends to suggest_______.

A．positiveemotionsareasgoodasnegativeemotions

B．itisnotnecessarilygoodforyouifyoualwayslookatproblemspositively

C．itwillbegoodforyourhealthtoalwayskeepupanoptimisticstateofmind

D．thesaying---everycoinhastwosides.

数据完整性服务用来保证发送信息与 【2】信息的一致性，防止出现信息在传输过程中被插入、删除的问题。