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某三级公路，设计车速40km/h，路基宽度8.5m，路面宽度7m。路面结构从上而下分别为22cm厚的水泥混凝土面板、20cm厚水泥稳定土基层、20cm天然砂砾。 项目部中心试验室根据技术规范要求，对原材料取样试验，为防治该路面基层裂缝，项目部采用了多项措施以防水泥稳定土基层裂缝，包括设计合理的水泥稳定土配合比、加强拌和等。路面施工完成后，部分路面面层出现断板。 根据场景，回答下列问题。 对面层的病害，治理措施有( )。
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某三级公路第四合同段，设计车速40km/h，路基宽度8.5m，路面为双车道沥青混凝土路面。路线通过地段为砂性土，砂性土覆盖厚度一般在1～5m不等，砂性土层下为粉质性低液限黏土，地下水位在埋深3m以下，路线两侧为农业区。 K20+450～K20+950路堤填筑高度22m，为防治路基病害，在采取相应的设计处理措施基础上，设计方对施工提出以下要求：(1)加强对地基的压实。(2)严格分层填筑并充分压实。(3)填挖交界处挖台阶。 施工单位在施工过程中严格按照设计要求进行施工，路基填筑过程中严格控制有效宽度，加强沉降观测和侧向位移观测，在施工过程中遇到一处软基，在对软基进行必要处理后，从原地面以上2m高度范围内填筑细粒土并分层压实。由于填筑过程中突遇大雨停工数日，天晴后排除积水继续施工，为赶工期，工班长提出加班加点填筑，并提前完工。 根据此案例场景，回答下列问题： K20+450～K20+950路堤属于( )。
某三级公路，设计车速40km/h，路基宽度8.5m，路面宽度7m。路面结构从上而下分别为22cm厚的水泥混凝土面板、20cm厚水泥稳定土基层、20cm天然砂砾。 项目部中心试验室根据技术规范要求，对原材料取样试验，为防治该路面基层裂缝，项目部采用了多项措施以防水泥稳定土基层裂缝，包括设计合理的水泥稳定土配合比、加强拌和等。路面施工完成后，部分路面面层出现断板。 根据场景，回答下列问题。 项目部采取设计合理的水泥稳定土配合比、加强拌和的措施，是为了避免( )。
某桥主墩基础为钻孔灌注桩，地质依次为表层2m的砾石，以下为软土。施工单位考虑到灌注时间较长，经业主同意在混凝土中加入缓凝剂。首批混凝土灌注后埋置导管的深度为1.2m，在随后的灌注过程中连续均匀进行。当灌注混凝土进行到23m时，发现导管埋管，施工人员采取了强制提升的方法；灌注到30m时，出现导管堵塞，施工人员采用型钢插入法疏通导管，之后继续灌注混凝土直到完成。施工后经检测发现断桩。 根据场景，回答下列问题。 下列措施不是钻孔灌注桩断桩的防治措施是( )。
A great deal of attention is being paid today to the so-called digital divide—the division of the world into the info (information) rich and the info poor. And that (31) does exist today. My wife and I lectured about this looming danger twenty years ago. What was less (32) then, however, were the new, positive (33) that work against the digital divide. (34) , there are reasons to be (35) .There are technological reasons to hope the digital divide will narrow. As the Internet becomes more and more (36) , it is in the interest of business to universalize access-after all, the more people online, the more potential (37) there are. More and more (38) , afraid their countries will be left (39) , want to spread Internet access. Within the next decade or two, one to two billion people on the planet will be (40) together. As a result, I now believe the digital divide will (41) rather than widen in the years ahead. And that is very good news because the Internet may well be the most powerful tool for (42) world poverty that we’ve ever had.Of course, the use of the Internet isn’t the only way to (43) poverty. And the Internet is not the only tool we have. But it has (44) potential.To (45) advantage of this tool, some poor countries will have to get over their outdated anti-colonial prejudices (46) respect to foreign investment. Countries that still think foreign investment is a/an (47) of their sovereignty might well study the history of (48) (the basic structural foundations of a society) in the United States. When the United States built its industrial infrastructure, it didn’t have the capital to do so. And that is (49) America’s Second Wave infrastructure— (50) roads, harbors, highways, ports and so on-were built with foreign investment. 45().
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