公路工程施工招标投标活动应当遵循的原则有（）。
A.择优
B.公开
C.公正
D.公平
E.诚信
参考答案：B, C, D, E
Why does Jamie want to move out of the dormitory().
A.Because she likes a quiet life.
B.Because she needs a place to her own.
C.Because she is not on good terms with her roommates.
中景
