问题
单项选择题
( )是项目监督管理的重要组成部门，是为项目稽察服务的一项主要咨询工作，是项目绩效管理的重要手段。
A．项目评估
B．项目跟踪评价
C．工程勘察设计
D．可行性研究
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
( )是项目监督管理的重要组成部门，是为项目稽察服务的一项主要咨询工作，是项目绩效管理的重要手段。
A．项目评估
B．项目跟踪评价
C．工程勘察设计
D．可行性研究
参考答案：B
完形填空 阅读短文，从每题所给选项中选出可以填入空白处的最佳选项。（15分） I can’t remember when I started collecting litter. But it was when I got tired of ___1___ litter nearby and realized that no one else was going to pick it up. I live ___2___ a forest in Ohio, America. I can walk there ___3___ three minutes.I used to love going there to play with my dog. But one day there was ___4___ much litter there that I became very unhappy. I decided I had to clean up the forest. I wanted to __5__ happy going there again. I ___6___ my first trip to clean the forest that afternoon. I took a big black rubbish bag with me. Ten minutes ____7_____ starting to pick up litter, my bag was full! It had cans, _____8___, broken glass and newspapers in it. From then on, I ___9____ to the forest four times a year to pick up litter. I’m often there for three hours. It makes me feel ____10____ to do something for the environment. After each trip, I look at all the litter that I’ve found. If _11___ of it is recyclable, I keep it. I __12___ understand why people drop litter. But I will keep picking it up __13___ they stop __14___it.I know I am only doing a small bit ___15_____ the Earth, but I still think it is important.
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烤瓷冠修复，完成后检查：见瓷层颜色无层次感，最常见的原因是（）