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半夏厚朴汤中苏叶的作用是（）
Flu and How Not to Catch It This winter, in offices and workplaces throughout the country, people are at risk of becoming a health danger to their colleagues. These are the people who, carrying flu viruses, have dragged themselves in to work in (1) sp____ of the high temperature, headache, sore throat and cough they are (2) su____ from. Most experts agree that people with flu ought to stay at home, certainly in the case of those (3)____ jobs involve public safety-airline pilots, air traffic (4)____(control) and train drivers. A diet rich in (5) ve____ and fruit and regular exercise may help people avoid the illness. Experts are (6)____(doubt) whether taking lots of vitamin C will (7)____ any difference, but reducing stress levels may help. Basic hygiene is certainly important, as well, especially in the office. We know that the illness can be passed on (8) f____ cups and saucers, so do more than simply rinse them under the tap with all the others. Wash them properly with hot water and use disinfectants to clean surfaces. Remember to wash your hands (9) reg____ and don’t touch your face, as flu enters the body through the eyes, nose and mouth. Other tips on prevention include (10)____ rid of cloth handkerchiefs, which provide a home for germs. Change to paper tissues and throw them away afterwards.
投保人向保险人交纳保险费，如果被保险人在保险期间遭受意外伤害并由此造成死亡或残疾，由保险人给付被保险人或其生前指定的受益人，这种保险属于（ ）
FAO土地适宜性评价系统分为哪几级？
肾阳虚的表现不包括（ ）。
在耗气型气动功率放大器中，如锥阀的锥度增大，则放大倍数（）。
防止引爆煤尘的措施（）。
平缓地形的整地，通常需翻耕（）的深度，以利蓄水保墑。
麻黄汤证的主要证候是（）
下列镇痛作用最强的静脉麻醉药是（）
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