以下可以作为供应链核心企业的有（）
A.生产企业
B.流通企业
C.物流企业
D.银行
E.信息企业
参考答案：A, B, C, D, E
Never before ______ in greater need of patience and courage than today.[ ]
A. have you been
B. you have been
C. were you
D. you were
按情绪的三维模式图，属于情感两极的情感是（）
A.愤怒与憎恨
B.接受与憎恨
C.惊愕与恐怖
D.狂喜与厌恶
