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问题 单项选择题

有关胃肠道手术病人术前准备，正确的是

A．术前3天开始进流食

B．术前12小时禁食

C．术前6小时禁水

D．幽门梗阻病人术前应用蒸馏水洗胃

E．直肠手术患者术前1天口服抗生素

答案

参考答案：B

解析：术前1～2天开始进流食，术前 4小时禁水，幽门梗阻病人术前应用温生理盐水洗胃，直肠手术患者术前1天口服抗生素。

完形填空

It's easy to take your hearing for granted until it's too late.

With the wide    1   _(popular) of digital entertainment products, it is not uncommon to see people wearing headphones and listening to music    2    running in the park or using public transport. And the volume is often so loud that people around    3    can hear the music as well.

However, doctors warn that such behavior can    4   _(potential) damage their hearing. "In noisy places, people tend   5  _(turn) the volume up to get the same clarity of sound. Unfortunately, that can damage the hearing   6  people being aware of it," said Feng Yongfeng, chief ENT physician at Beijing Tian'an Hospital.

After Spring Festival, the hospital witnessed   7   slight increase in the number of teenagers coming in with hearing problems,  8   Feng attributed to them wearing headphones at home for long periods during the holiday. Feng said both in-ear and overhead headphones can harm the ears and    9   (advise) against using them for long periods. He said if you do use headphones it is worth    10   (invest) in the highest quality you can afford.

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单项选择题

《物业管理条例》确立了业主大会和业主委员会( )，业主大会决策、业主委员会执行的制度。

A．协商

B．分离

C．并存

D．互相排斥
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