（）指根据动、静态检测结果及线路状态变化情况，进行有计划、有重点的经常性修理，以保持

男性，48岁。1年前无明显诱因逐渐出现颈后酸痛不适，双手麻木，不灵活，使用筷子困难。行走时有踩棉花感，易跌倒。查体：前臂外侧痛觉减退，四肢肌张力增高，双Hoffmann试验（+），踝阵挛（+），Babinski（+）。X线检查：颈5～6生理曲度消失，局部轻度后凸畸形，间隙狭窄，增生硬化，椎管矢状径15mm。

患者伴有阵发性头晕、眼花、耳鸣等，与头部转动有关，曾有两次猝倒，持续约半分钟。鉴于此，还应进行的检查是（）.

A.头颅CT

B.脑电图

C.椎动脉造影

D.核素扫描

E.诱发电位

政协全国委员会全体会议一般（）

借助于经济学、数学、计算机科学、统计学、概率论以及帮助决策的理论来进行逻辑分析和推论。这一概念指的是（）

A.系统分析方法

B.相对分析方法

C.相对分析方法

D.定量分析方法

某男，42岁。一个月来由于工作压力大，每至黎明时腹痛欲泻，泻后痛减，每晨2至3次稀便。服用四神丸等无效，舌淡红，苔薄腻，脉弦有力，临床诊断最可能的是：（）

A.肾阳虚证

B.脾阳虚证

C.寒湿困脾证

D.湿热蕴脾证

E.肝气犯脾证

Visitors to Britain may find the best place to sample local culture is in a traditional pub. But these friendly hostelries can be minefields of potential gaffes for the uninitiated.
An anthropologist and a team of researchers have (1) some of the arcane rituals of British pubs—starting with the (2) of getting a drink. Most pubs have no waiters—you (3) to go to the bar to buy drinks. A group of Italian youths (4) for 45 minutes before they realized they would have to (5) for their own. This may sound inconvenient, but there is a (6) purpose.
Pub culture is designed to (7) sociability in a society known for its reserve. Standing at the (8) for service allows you to chat with others (9) to be served. The bar counter is possibly the only (10) in the British Isles in which friendly conversation with (11) is considered entirely appropriate and really quite normal (12) . "If you haven’t been to a pub, you (13) been to Britain." This tip can be found in a (14) , Passport to the Pub: The Tourists’ Guide to Pub Etiquette, a (15) code of conduct for those wanting to sample "a central part of (16) life and culture". The trouble is that if you do not (17) the local rules, the experience may fall flat. For (18) , if you are in a big group, it is best if only one (19) two people go to buy the drinks. Nothing irritates the (20) customers and bar staff more than a gang of strangers blocking all access to the bar while they chat and dither about what to order.