贵公司正投标某国际项目，该项目要求在开始施工前，要进行环境影响研究。要求进行上述研究说明（）。
A.证明示范效应对国际事务的影响
B.项目制约因素
C.作为投标或不投标决策一部分的、必须予以考虑的一个因素
D.遵行国际法律的一个实例
参考答案：B
解析：
制约因素是限制项目管理团队的选择方案的因素。要求项目产品在社会、经济和环境方面均具有可持续性也将对项目的范围、人员配备和进度安排产生影响。
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| Food is everywhere in our lives. There are advertisements for food 1 on TV and in magazines. It's not surprising that many people eat three big 2 a day, and then they have lots of snacks 3 . Doctors say that people 4 eat like pigs. They should eat like birds! It's good for you to have four or five small meals a day. You should eat small amounts of food by taking small bites while eating. It can be 5 for you to eat two or three big meals a day, but these food habits are very 6 to change. Some people never change their eating habits. Other people are 7 to change. When they go to a restaurant, they 8 boiled (煮熟的) fish or chicken, and vegetables. They don't eat a rare steak (牛排) and sour cream. Doctors say that boiled food are good for people. They are better than fried foods. Sometimes, people don't have 9 time to think about food. At lunchtime many people run into a fast-food restaurant for lunch and eat a hamburger and French fries. While they are eating, they drink a soft drink. They can eat up a whole meal in 10 20 minutes. This is good for their daily timetable. But it is not very good for their digestive system or their weight! | ||||
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