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试述唇裂手术时机的选择。

答案

参考答案：唇裂手术时机的选择：

（1） 唇裂整复术属于择期手术，必须在患者处于最佳生理状态下才进行手术，方可达到安全而又能取得良好效果的目的。

（2） 从上唇生长发育规律的角度和手术安全性综合考虑，手术最适年龄为：单侧唇裂在3～6个月，双侧唇裂宜在6～12个月。

（3） 患儿的年龄并非是绝对的指标，还应从患儿的发育和全身健康状况综合评价。一般决定患儿是否适宜手术还必须坚持4个“10”原则：① 患者体重大于10磅（约4.5kg）；② 血红蛋白大于100 g/L；③ 白细胞小于10×109/L；④ 患儿年龄应大于10周龄以上。

（4） 就季节而言，冬季易感染上呼吸道疾病；夏季炎热易发生消化道疾患、脱水及创口感染等，故以春秋两季施术最为适宜。

多项选择题

按照基础资产性质的不同，金融期权大致可分为（）等种类。

A.利率期权

B.货币期权

C.股权类期权

D.互换期权
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单项选择题

　第一篇 Is the Tie a Necessity？　　Ties, or neckties, have been a symbol of politeness and elegance in Britain for centuries. But the casual Prime Minister Tony Blair has problems with them. Reports suggest that even the civil servants may stop wearing ties. So, are the famously formal British really going to abandon the neckties Maybe. Last week, the UK’s Cabinet Secretary Andrew Turnbull openly welcomed a tieless era. He hinted that civil servants would soon be tree of the costliest 12 inches of fabric that most men ever buy in their lives.　　In fact， Blair showed this attitude when he had his first guests to a cocktail party. Many of them were celebrities （知名人士） without ties， which would have been unimaginable even in the recent past.For some more conservative British, the tie is a must for proper appearance. Earlier, Labor leader Jim Callaghan said he would have died rather than have his children seen in public without a tie. For people like Callaghan, the tile was a sign of being complete, of showing respect. Men were supposed to wear a tie when going to church, to work in the office, to a party - almost every social occasion.But today, people have begun to accept a casual style even for formal occasions.　　The origin of the tie is tricky. It started as something called simply a "band". The term could mean anything around a man’s neck. It appeared in finer ways in the 1630s. Frenchmen showed a love of this particular fashion statement. Their neckwear （颈饰）impressed Charles II， the king of England who was exiled（流放）to France at that time. When he returned to England in 1660， he brought this new fashion item along with him.It wasn’t, however, until the late 18th century that fancy young men introduced a more colorful, flowing piece of cloth that eventually became known as the tie. Then, clubs military institutions and schools began to use colored and patterned ties to indicate the wearer’s membership in the late 19th century. After that, the tie became a necessary item of clothing for British gentlemen.　　But now, even gentlemen are getting tired of ties. Anyway, the day feels a bit easier when you wake up without having to decide which tie suits you and your mood.

Which of the following is NOT a social occasion

A．Going to church.

B．Going to work in the office.

C．Staying at home.

D．Going to a party.
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