钢中加入V、Ti等合金元素能阻止奥氏体晶粒长大。

女性，74岁，两年前诊断肺心病，一周来咳嗽、咳痰、喘息加重，双下肢水肿，体检：肺内大量湿啰音，心率100次/分，肝肋下2.5cm，双下肢水肿。白细胞计数及中性粒细胞分类均增高，血气分析：pH 7.335，PaO₂50mmHg，PaCO₂78mmHg，HCO₃ˉ34mmol/L，BE 4mm01/L。

该患者目前不存在下列哪种并发症

A．肺部感染

B．心力衰竭

C．呼吸衰竭

D．呼吸性酸中毒合并代谢性酸中毒

男性，65岁，头晕、心悸1周，偶有晕厥。既往有高血压、冠心病病史，血压140/70mmHg，心律不齐。心电图示PR间期0.22秒，部分P波后有QRS波群脱落。

最有效的治疗是（）

A.阿托品

B.安装临时或永久起搏器

C.静滴异丙肾上腺素

D.继续观察病情

E.经食管心房起搏

As a boy，Tim was much influenced by books about the sea, but in fact by the age of fifteen he had decided to become a doctor   小题1:     a sailor. His father was a dentist and as a result Tim had the opportunity of meeting many doctors either at home or elsewhere. When he was fourteen he was already hanging around the clinic of a local doctor  小题2:  he was supposed to be helping to wrap up medicine bottles, but was actually trying    小题3:  (listen) to the conversations    小题4:  (take place) between the doctor and his patients in the next room.

During the war Tim served in the Navy as a surgeon（外科医生）.“That was the happiest time of my life. I was dealing with very real suffering and    小题5:  the whole making a success of it .”In California he taught the country people simple facts about medicine. He saw himself as a life-saver. He   小题6:  (prove) his skills to himself and his ability to take decisions. Thus, while he was able to tell them what to do, he could feel he was serving them. After the war, he got married and chose to be a doctor in the countryside, working under an old doctor who was popular in the area,    小题7: who hated the sight of blood and believed that the secret of medicine was faith. This gave the younger man many opportunities to go on    小题8:  (work) working as a life –saver.

“角膜缝线拆除术”的主导词是（）

A.拆除术

B.角膜

C.缝线

D.去除术

E.破坏术

关于user@publiC、qz.fj.cn邮件说法正确的是（）。

A、该收件人标识为user

B、该邮件服务器设在中国

C、知道该用户的邮件地址还需要知道该用户的口令才能给他发邮件

D、当我们发信给他时，若此人不在网上，邮件将会丢失

E、邮件服务器地址为publiC、qz.fj.cn