非渗水土和用封闭层处理的路基面应设路拱。路拱的形状为三角形。单线路基面路拱的拱高为0

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问题:

非渗水土和用封闭层处理的路基面应设路拱。路拱的形状为三角形。单线路基面路拱的拱高为0.15m().

A、0.1m

B、0.15m

C、0.2m

D、0.5m

考点:公路工程监理工程师道路与桥梁道路与桥梁题库
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基础训练篇(18)

There were once a goat and a donkey   1.              lived on a farm. The donkey worked the hardest so the farmer fed it the most   2.             . Sometimes the donkey was given more food   3.             it could eat. This made the goat so jealous   4.             it began plotting against(谋划对付) the donkey. “Hey, donkey,” the goat said one day. ”I think you do too much work on this farm. You carry such heavy things from morning to night. Why don’t you pretend   5.            (get) sick so you can take a day   6.            ?” The donkey thought the goat had a great idea. So the next morning, the donkey lay in the stable(畜栏) on its side with its eyes   7.           (close). Right away, the farmer called in a doctor.  8.            looking at the donkey, the doctor said it needed a special medicine made  9.            the heart of a goat. So the farmer killed   10.             goat and gave the donkey medicine made from its heart.

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疱疹性龈口炎的致病微生物是

A.Ⅰ型单纯疱疹病毒
B.牙龈卟啉菌
C.奋森螺旋体和梭状杆菌
D.变形链球菌
E.白色念珠菌

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A.门静脉压力增高

B.原发性醛固酮增多

C.低白蛋白血症

D.肝淋巴液生成过多

E.抗利尿激素分泌过多

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乒乓球双打站位有一前一后,一左一右两种。

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