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一个7岁儿童的智商是8岁，他的比率智商是()。

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First Bank of England
Address: 48 North Square, London WSSR 5KL, UK
Tel: 020 7342 2369 Fax: 020 7342 2901
IRREVOCABLE LETTER OF CREDIT
Credit number: 25489
Date: March 4, 2003
Applicant: Longway Company, London
Beneficiary: Dalian Electronic Appliances Company, China
Dear Sirs,
We hereby open our irrevocable letter of credit in your favor for the sum not to exceed a total of Seventy Five Thousand US Dollars (US $75,000), to be made available by your request for payment at 30 days sight drawn on us for 100% of invoice value accompanied by the following documents.
Signed Invoice in three copies' certifying that the goods are in accordance with Contract No. GA/JS-453.
Insurance Policy for invoice amount plus 10%.
Clean shipped Bills of Lading in complete set issued to order and blank endorsed marked "Freight paid"
Evidencing shipment of: 150 cartons of 34 "Color Television Receivers" (C.I.F. London)
Shipment: from Dalian, China to London, Britain
Partial Shipments Not Permitted
Transshipment Not Permitted
We hereby engage that payment will be duly made against documents presented in Advising Bank's notification in conformity with the terms of this credit.
Yours faithfully
Roy Smith
Manager
First Bank of England, London, International Division
Letter of Credit, Irrevocable Documentary
Opener:【46】
Opening Bank:【47】
Amount covered:【48】
Goods covered:【49】
Port of Departure:【50】

信息组织的三个原则是：引入注目、恰当评价和物尽其用。()

背景材料
某施工企业承包了一段36.8Km的四车道高速公路沥青混凝土路面工程，路面单幅11.25m。路面结构型式为：基层为两层18cm的石灰粉煤灰稳定碎石；底基层为一层18cm的石灰粉煤灰稳定碎石；沥青混凝土面层为7cm的下面层，6cm的中面层和5cm的SMA表面层；桥上只铺5cm的SMA表面层，隧道内为水泥混凝土路面。
项目经理部人员进场后，完成了经理部的建设和设备的进场工作。施工平面布置示意图如下：
合同规定沥青材料由业主提供，地方材料由施工单位自采。材料管理人员在查看过料场、进行了价格比选后，就开始进料。
项目经理部按照各项要求，在完成了一系列的准备工作后，开始施工石灰粉煤灰稳定碎石底基层。施工中，施工人员发现其中一段800m长的底基层出现了大量裂缝和破损，经检查是由于路基质量差所致，路面施工单位拟向路基施工单位提出索赔。
问题：
项目部需要采购哪几大类地材？项目部材料采购程序存在什么问题？

网页设计的一般步骤为先明确网站的目的和性质、分析网站的用户、确定页面的结构和框架和点击率统计设计。()