元素A的原子最外层有6个电子，元素B的原子最外层有3个电子，则A与B形成的化合物

患者女性，25岁，近中高位阻生，牙龈无红肿，无盲袋形成。X线片示，为双根，近中冠紧顶远中颈部，该牙的拔除方案是（）

A．正中劈开后分别拔出近远中部分

B．翻瓣去骨后拔除

C．直接挺松后拔除

D．翻瓣去骨劈开后拔除

E．牙钳直接拔除

男，20岁，外伤致肘关节脱位，现已手法复位成功，准备行石膏托固定肘关节，应将肘关节（）

A.屈曲30°

B.屈曲60°

C.屈曲90°

D.屈曲120°

E.伸直位

简述企业集团财务管理模式的改进措施。

根据《消防法》第70条，责令停产停业，对经济和社会生活影响较大的，由公安机关消防机构提出意见，并由公安机关报请本级人民政府依法决定。某市公安局消防局在消防大检查中发现某大型蔬菜批发市场重新装修后未经消防安全检查即投入运营，提出责令其停业的意见。市公安局消防局起草《关于责令某市场停业的报告》，市公安局将该报告上报给市政府，同时抄送经营该市场的某公司。市政府根据该报告，作出责令该市场停业的决定。经营该市场的某公司不服提起行政诉讼，被告应当是谁？（）

A.市公安局消防局

B.市公安局

C.市政府

D.市公安局与市政府

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.