为某患者冲洗泪道时有阻力，且冲洗液部分自泪小点返回，部分流入鼻腔，提示（） A.泪道 发布时间：2017-08-31 01:17 │ 来源：www.tikuol.com 题型：单项选择题 问题： 为某患者冲洗泪道时有阻力，且冲洗液部分自泪小点返回，部分流入鼻腔，提示（）A.泪道通畅B.鼻泪管狭窄C.泪小管阻塞D.泪总管阻塞E.以上均不是
题型：单项选择题 在下列叙述中，正确的是()。A．软盘、硬盘和光盘都是外存储器B．计算机的外存储器比内存储器速度快C．计算机系统中的任何存储器在断电的情况下，所存的信息都不会丢失D．绘图仪、鼠标、显示器和光笔都是输入设备 查看答案
题型：单项选择题 对新生儿寒冷损伤者的家长宣教内容是()A．指导或示范家庭简易的保暖方法B．保证新生儿居室温度不低于24℃C．室内配置温、湿度计D．用热水袋保暖时保持水温在80℃E．保持新生儿室内清洁卫生 查看答案
题型：单项选择题 阅读理解根据短文内容,从下框的A - F选项中选出能概括每一段主题的最佳选项.选项中有一项为多余项.A.The spreading teaB.The history of tea growingC.Changes of tastes for drinksD.Reducing cancer risksE.The plant Camellia sinensisF.A woman's opinion of tea1. _____ Americans are far more knowledgeable about drinks than they were 20 years ago. Witness the Starbucks revolution and you'll know where the trend goes. Now, encouraged by recent studies suggesting that it can cut the risk of cancer and heart disease and slow the aging process, tea is enjoying a similar change. Enough fashionable tea houses are springing up to make even longtime coffee drinkers consider switching drinks.2. _____ Tea is available in more places than ever. The Tea Association of the United States reports that from 1990 to 1999, annual sales of the drink grew to $4.6 billion from $1.8 billion. "Green tea is seen by consumers as a 'functional food'" - delivering health benefits beyond food itself, says Vierhile.3. ____ Recently published studies point out that only teas that come from the leaves of the plant Camellia sinensis have been shown to contain health benefits. Other herbal teas may taste good, yet they do little more than warm up the drinker. But for Camellia sinensis, the evidence is powerful. In a 1998 study, Harvard University researchers found that drinking one cup of black tea a day lowered the risk of heart attack by as much as 44 percent compared with non-tea drinkers, and other studies have suggested that the antioxidants (抗氧化剂) in these so-called real teas can also prevent cancer.4._____ One such antioxidant in green tea is ECGC, a compound 20 times as powerful as vitamin E and 200 times as powerful as vitamin C. "When people ask me for something good and cheap they can do to reduce their cancer risk, I tell them to drink real tea," says Mitchell Gaynor, director of medical oncology at New York City's Strang-Cornell Cancer Prevention Center.5. _____ Among those inspired to become a green-tea drinker is Tess Ghilaga, a New York writer who took it up after seeking advice from a nutritionist six years ago. "I've never been a coffee drinker," says Ghilaga, 33. "She told me to start drinking green tea for the antioxidant qualities." Now Ghilaga and her husband habitually make tea - they order theirs from InPursuitofTea.com, an Internet tea company. And although tea contains about half the amount of caffeine in a cup of coffee, "you still get such a kick from it," says Ghilaga. 查看答案