以下为项目合同的终止的原因，哪一项是错误的？（） ["A.因履行页终止","B.当事人双方混同为一人而终止","C.随意终止","D.不可抗力终止"]
A single fitting installed in a pipeline that either blanks off the pipe or allows a full flow passage of a liquid through the pipe is referred to as a（）. ["blind flange","pivot coupling","quick-release coupling","spectacle flange"]
In the management of the shafting, because（） carry heavy load and caused high temperature easily, it should be paid attention. ["the bearing near to the diesel engine","the intermediate bearing near to the thrust bearing","the intermediate bearing near to the sterntube","the bearing located at the middle of the diesel engine and the sterntube"]
在使用中文Windows XP时，如果要改变显示器的分辨率，则应使用（）。 ["资源管理器","控制面板中的显示项","附件","控制面板中的系统项"]
巴基斯坦瓜达尔港原是一小渔村。从1964年起，巴国就开始寻求开发瓜达尔港，但港口开发建设难度大，直到中国企业参与后，港口建设才获得突破性进展。2015年4月，瓜达尔港的基础设施建设已基本完成。随着中巴经济走廊建设，瓜达尔港将成为我国“—带一路”战略的重要节点。下图是喀什至瓜达尔港拟建铁路规划图。
简述瓜达尔港的开发有利条件？
安装在船上的船用灯具几类？作用分别是什么？
