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某招标工程项目执行《建设工程工程量清单计价规范》( JZ500 -2013)，招标工程量清单中某分项工程的工程量为1500m3,施工中由于设计变更调增为1900m3,该分项工程最高投标限价综合单价为40元/m3,投标报价为47元/m3,则该分项工程的结算价？

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某施工现场主导施工机械一台，由承包人租得。施工合同约定，当发生索赔事件时，该机械台班单价、租赁费分别按900元/台班、400元台班计；人工工资、窝工补贴分别按100元/工日、50元工日计；以人工费与机械费之和为基数的综合费率为30%。在施工过程中，发生如下事件：①出现异常恶劣天气导致工程停工2天，人员窝工20个工日;②因恶劣天气导致工程修复用工10个工日、主导机械1个台班。为此承包人可向发包人索赔的费用？

You may find that before a trip starts you are like “I am so excited; I can’t wait”. But after one week you may already be thinking “I miss home, I want to go back”. So, why go travelling when you know that you’ll be feeling _1_ after a while? One thing you have to _2_ in mind is that everyone gets homesick at some point. Whether it’s missing your Mum’s cooking, missing your friends or just missing the local pub. Going on your travels can sometimes be a bit of a culture _3_ especially when you arrive in a country with an _4_ culture and a language that seems impossible to learn. This shock can last until the end of your trip because several factors like food, language, or people could _5_ your point of view. When travelling and visiting other countries there are so many changes that _6_ place. The daily activities and _7_ all change and you are _8_ to new and different choices. Some of these prove difficult as we have many habits at home and when they change you are far away from the _9_ of family and friends to help you through it. These are the main reasons why some people feel homesick. Some people love all the changes and really take it in their stride like meeting new people, trying new food etc. because it makes them feel more _10_ and independent.

已知两个正弦量分别为i1=1sin（314t+60），i2=20sin（314t+60）则i1与i2的相位差为

A. 180
B. 0
C. 90
D. 120

交流电压u=311sin（314t-30)V 写出最大值有效值频率初相