桥隧建筑物状态评定中规定:凡结构物或主要构件功能严重劣化,危及行车安全,评定为()等 发布时间:2017-07-04 22:36 │ 来源:www.tikuol.com 题型:填空题 问题: 桥隧建筑物状态评定中规定:凡结构物或主要构件功能严重劣化,危及行车安全,评定为()等。
题型:填空题 患者女性,50岁,左下第一双尖牙及左下第一牙残根,既往病史中曾有风湿性心脏病史13年,现二尖瓣狭窄,心功能Ⅰ级对此患者施行牙拔除术时须慎重,否则容易引起的严重并发症是()A.颊间隙感染B.颌下间隙感染C.干槽症D.败血症E.亚急性细菌性心内膜炎 查看答案
题型:填空题 阅读理解。 Vans, Keds, Dollies-they sound like the names of rock bands, but if you have teenagers, you'll know they're actually the latest in teenage footwear. But experts are now warning that the current shoe fashions will be causing teenagers discomfort in the short term and storing up years of foot, knee and back pain in the future. Here, the experts identify the problems caused by teenagers' shoe choice. KEDS/VANS Slip-on shoes with elastic (弹性的) sides are particularly popular among teenage boys-with Keds and Vans the most sought-after brands. The main problem is that they are just too flat-so flat that the heel, which strikes the ground first, also becomes damaged and painful. BALLET PUMPS The worst shoes of all are such light and thin dolly shoes. The problem is partly their flatness, as with Keds and Vans. However ballet pumps, which have no string or heel, haveother specific problems. "As the shoe has no fastening device, it relies on the toes to keep the shoe on, causing an awkward gait (步法), this leads to short- and long-term problems such as calluses (茧子), heel and knee pain." WEDGES AND STILETTOS These shoes can also cause problems with gait. They may look good, but the heels onthese are so high they can force the wearer's body weight forward, making them very unstable. Teens who wear these shoes regularly are also in danger of joining those millions of women with constant back pain. SCHOOL SHOES So what do podiatrists (足科医生) have on their wish list, especially for everyday wear? Something in a natural, breathable fabric, with a string to hold it on, with a small heel and a deep toe-box thatdoes not press the toes, such as Clark's, Marks & Spencer or Rhino. If your teen insists on wearing 'bad' shoes, get them some simple foot orthotics (矫形器) in the shoes. Thesesupport and correct the movement of the foot and, properly fitted by a podiatrist, can often transform their walk and halt the damage. 1. Of all the shoes mentioned in the passage, which can cause the worst problems? A. Marks & Spencer.B. Wedges & Stilettos.C. Keds and Vans. D. Ballet Pumps. 2. Which pair of shoes may not be found on the podiatrists' wish list? A. B. C. D. 3. The underlined word "halt" in the last paragraph probably means _____. A. increase B. worsen C. stop D. cure 4. From this passage we can infer _____. A. trendy shoes may ruin teenagers' health B. fashionable shoes all have orthotics in them C. experts are strongly against wearing popular shoes D. podiatrists are expert at producing branded shoes 5. In which column of Mail Online can you find this passage? A. Sports.B. Science. C. Health. D. Shopping. 查看答案