下列哪些行为是珍爱生命的表现[] ①遵守交通规则 ②学习生活有规律 ③在诱惑下吸

女，27岁，初产妇产后半月，右 * * 疼痛5天，体温39℃～40℃，局部明显压痛。

如果形成脓肿，最重要的诊断依据为（）

A.局部检查有波动

B.全身毒血症状严重

C.局部皮温高

D.穿刺抽出脓液

E.局部疼痛减轻

环磷酰胺在体外对肿瘤细胞无效，在体内可形成下列代谢产物，其中哪些有抗肿瘤活性

A．4-羟基环磷酰胺

B．丙烯醛

C．磷酰氮芥

D．4-酮基环磷酰胺

E．去甲氮芥

某犯罪嫌疑人实施犯罪行为后携带炸药逃跑，经警告无效的，人民警察（）。

A、不可以使用武器

B、可以使用武器

C、应当使用制服性警械

D、以上都不对

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.

络纱工艺如何确定？其质量如何控制？