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某施工单位承包了某一级公路L合同段路基工程，路基宽度20m，合同段全长16km。
K26+000～K31+000原地面多为耕地，零星分布有灌木丛，地面横坡1:8～1:10，路基为土方路堤，路基高度1～3m，路堤填料为细砂质粉土，采用水平分层填筑法施工。
K31+320～K31+680段为半填半挖路基，地面横坡1:3左右，路基右侧设置浆砌块石挡土墙，为了使挡土墙与挡土墙两侧路堤连接平顺，挡土墙两侧设置了锥坡。
按规范要求，对K26+000～K31+000路段的原地面处理方法有( )。
E.设置砂垫层

A.清除有机土
B.清除种植土
C.挖台阶
D.砍伐、移植清理灌木丛

【参考答案】

ABD
解析：路基用地范围内的树木、灌木丛等均应在施工前砍伐或移植清理，砍伐的树木应移置于路基用地之外，进行妥善......

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Eating Potatoes Gives Your Immune System a BoostEating potatoes is not only good for bowel health, but also for the whole immune system, especially when they come in the form. of a potato salad or eaten colD.In a study on an animal model, researchers in Spain found that pigs fed large quantities of raw potato starch (RPS) not only had a healthier bowel, but also decreased levels of white blood cells, such as leucocytes and lymphocytes in their blooD.White blood cells are produced as a result of inflammation or disease, generally when the body is challengeD.The general down-regulation of leucocytes observed by the Spanish researchers suggests an overall beneficial effect, a generally more healthy body. The reduction in leucocytes levels was about 15 percent. Lower lymphocyte levels are also indicative of reduced levels of inflammation, but the observed reduction in both lymphocyte density and lymphocyte apoptosis is surprising.In what was the longest study of its kind, pigs were fed RPS over 14 weeks to find out the effect of starch on bowel health. 'The use of raw potato starch in this experiment is designed to simulate the effects of a diet high in resistant starch. ' said study leader Jose Francisco Perez at the University Autonoma de Barcelona, Spain.Humans do not eat raw potatoes, but they do eat a lot of foods that contain resistant starch, such as cold boiled potatoes, legumes, grains, green bananas, pasta and cereals. About 10 percent of the starch eaten by human is resistant starch--starch that is not digested in the small intestine and so is shunted into the large intestine where it ferments. Starch consumption is thought to reduce the risk of large bowel cancer and may also have an effect on irritable bowel syndrome (IBS).Immunology expert Lena Ohman's team previously found that the overall lymphocyte levels do not vary for IBS patients, but that lymphocytes are transferred from the peripheral blood to the gut, which support the hypothesis of IBS being at least partially an inflammatory disorder. She says the decrease in lymphocytes observed by the Spanish is therefore interesting, and a diet of resistant starch may be worth trying in IBS patients. Ohman is currently at the Department of Internal Medicine, Goteborg University, Sweden. The study is published in the journal Chemistry and Industry, The magazine of the SCI.What form. of potato is the most nutrient to the human body?A.Potato soup.B.Potato cakE.C.Potato salaD.D.Hot boiled potato.
A.B.
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