带状疱疹发病初期使用神经阻滞疗法有助于减少PHN的发生率。

已知M＝{x|x－a＝0}，N＝{x|ax－1＝0}，若M∩N＝N，则实数a的值为(　　)

A．1

B．－1

C．1或－1

D．0或1或－1

Have you ever heard of “flash mob(快闪族)”？

On July 12th,2009,at 5 pm, a lot of fans gathered at People’s Square I Shanhai to complete Michael Jackson’s unfinished dance in one minute.For a total of 60 seconds,they sang and did the moon walk to remember Michael Jackson.

This kind of phenomenon(现象)is called “flash mob”. “flash mob” is a group of people who gather in a public place to perform a strange activity for a short time.Sometimes, all these people are friends,but usually they are strangers who find each other through the Internet or sending short messages using mobile phones.

It’s interesting how “flash mob” activities are planned.Without technology–the Internet or mobile phones,it would be impossible to organize so many people in such a short time.

“flash mob” is very surprising and strange.One of the popular“flash mob” activities was in Manhattan,New York City.Several hundred people gathered in a department store and each of the them told the salesperson that they would buy the style of carpet(地毯)，and the salesperson didn’t know what to do.

小题1:What is “flash mob”?

小题2:What did a lot of fans do at People’s Square in Shanghai on July 12th, 2009?

小题3:Do the members of “flash mob” usually know each other very well?

小题4: How are so many people organized in such a short time?

小题5: What does the writer think of “flash mob”?

雅斯贝尔斯认为：“技术仅是一种手段，它本身并无善恶，一切取决于人从中造出什么，它为什么目的而服务于人，人将置于什么条件下。”雅斯贝尔斯的这段话表明他属于（）。

A.技术决定论者；

B.技术价值中性论者；

C.技术乐观主义；

D.技术悲观主义

患者女，65岁，上腹不适1个月余，伴乏力、消瘦，患胆囊结石多年。查体：皮肤巩膜无明显黄染，腹部无压痛。实验室检查：CA19-9375U/ml；B超示：胆囊颈部局限性增厚，范围约3cm，内有血流信号；胆囊单发结石，直径3cm；超声内镜示：胆囊颈部占位，未侵出胆囊肌层；腹部增强CT提示：胆囊占位性病变，动脉期可见病变明显增强，未发现侵犯肝脏或周围脏器；胆囊结石。

对该患者应采用的治疗是（提示：胆囊占位性病变，动脉期可见病变明显增强，未发现侵犯肝脏或周围脏器；胆囊结石。）（）

A.严密观察，病变明显增大时手术治疗

B.开腹胆囊切除术

C.腹腔镜胆囊切除术

D.胆囊癌根治术

E.5-FU为基础的化疗

下列叙述中，哪一项与表观分布容积（Vd）的概念不符（）

A.Vd是指体内药物达动态平衡时，体内药量与血药浓度的比值

B.Vd的单位为L或L/kg

C.Vd大小反映药物在组织中的分布范围和结合程度

D.Vd与药物的脂溶性无关

E.Vd与药物的血浆蛋白结合率有关