WebSQL is a SQL-like () language for extracting information from the web. Its capabilities for performing navigation of web () make it a useful tool for automating several web-related tasks that require the systematic processing of either all the links in a () , all the pages that can be reached from a given URL through () that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common () Interface.
WebSQL is a SQL-like () language for extracting information from the web.
背景
某住宅工程,建筑面积12300m2,地上6层,地下2层。筏板基础,框架剪力墙结构。预拌混凝土。底板防水为高聚物改性沥青卷材两层防水。屋面为卷材防水,面积2000m2。室内厕浴间为聚合物水泥防水涂料。工期365日历天。某防水公司中标后成立了项目部组织施工。
事件一:施工总承包单位在底板混凝土施工前对混凝土生产厂家进行了技术交底。其中规定:水泥用量不得少于270kg/m3;砂率宜为45%~55%;灰砂比宜为1:2~1:2.5;水灰比不得大于0.55;泵送时入泵坍落度宜为140~180mm;水泥强度等级不应低于32.5MPa,不得使用碱活性骨料。监理单位提出了意见,要求重新交底。
事件二:施工总承包单位在底板混凝土施工前对施工班组进行了技术交底。其中规定:底板防水混凝土连续浇筑,不留施工缝;墙体水平施工缝留在高出底板表面不小于200mm的墙体上;墙、板结合水平施工缝,留在板、墙接缝线以下150~300mm处;墙体预留孔洞时,施工缝距孔洞边缘不应小于200mm;垂直施工缝应避开地下水和裂隙水较多的地段,并宜与变形缝相结合;防水混凝土终凝后应立即进行养护,养护时间不得少于7d。监理单位提出了意见,要求重新交底。
事件三:防水公司项目部在底板卷材防水施工前对施工班组进行了技术交底。其中规定:底板垫层混凝土平面部位的卷材采用满粘法;严禁采用热熔法施工;卷材接缝必须粘贴封严,两幅卷材短边和长边的搭接宽度为150mm;上下两层和相邻两幅卷材的接缝错开1/3~1/2幅宽,且两层卷材不得相互垂直铺贴;在立面与平面的转角处,卷材的接缝留在平面上,距立面600mm处;阴阳角处找平层应做成圆弧或90°。监理单位提出了意见,要求重新交底。
事件四:防水公司项目部在屋面卷材防水施工前对施工班组进行了技术交底。其中规定:屋面坡度小于3%时,卷材宜平行屋脊铺贴;屋面坡度在3%~15%时,卷材垂直屋脊铺贴;上下层卷材垂直铺贴;找平层的分格缝处宜实铺,空铺的宽度宜为50mm;屋面卷材防水层由屋面最高处向下进行;铺贴天沟、檐沟卷材时,宜顺天沟、檐沟方向,减少卷材的搭接。监理单位提出了意见,要求重新交底。
事件五:防水公司项目部在室内防水施工前对施工班组进行了技术交底。其中规定:防水层厚度不应小于
Canada is the second largest country in the world in area, although its (21) is only some 25 million, most (22) in a 200-mile strip (23) the southern border. Over 25 percent of the (24) number live in the three main cities. The northern areas of the country are almost uninhabited (25) for isolated settlements.
Canada is (26) a rich country, and its national (27) per capita is the fifth highest in the world, but its economy in recent years has been rather (28) , because of the varied nature of what it does.
Over the last three years, the Canadian economy has been hard (29) by failing oil prices and by rising US interest (30) . This has (31) to a steep fall in industrial production-by as much as a fifth since 1981. Some (32) now think Canada is on the (33) to recovery, though more cautions spirits say that no (34) can be expected until there is
A. caused
B. moved
C. amounted
D. led
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