高桩码头工程施工组织设计编制中，应按工程地质报告所提供的资料，将与施工有关的资料列入，包括土层厚度，层顶标高，重力密度，天然含水量，内摩擦角，黏聚力，压缩系数，()，等。分析施工中应注意的事项。

A.标准贯入击数 

B.静力触探值 

C.土的层底标高 

D.土的平均厚度 

E.土层名称

One of the difficulties in building an SQL-like query language for the Web is the absence of a database (131) for this huge, heterogeneous repository of information. However, if we are interested in HTML documents only, we can construct a virtual schema from the implicit structure of these files. Thus, at the highest level of (132) , every such document is identified by its Uniform Resource Locator (URL), and a (133) and a text. Also, Web severs provide some additional information such as the type, length, and the last modification date of a document. So for data mining purposes, we can consider the set of all HTML documents as a relation:
Document (url, rifle, text, type, length, modif)
Where all the (134) are character strings. In this framework, an individual document is identified with a (135) in this relation. Of course, if some optional information is missing from the HTML document, the associate fields will be left blank, but this is not uncommon in any database.

A．table

B．title

C．driver

D．event