消费者由原来不喜欢某种产品到现在喜欢该种产品，这涉及到（）。
A.态度方向的改变
B.态度强度的变化
C.态度原则的调整
D.理性需求的改变
参考答案：A
Cindy is a newborn who has undergone corrective surgery for a tracheoesophageal fistula (TEF). When preparing for her discharge plan, the nurse teaches the parents about the need for long-term health care because Cindy would have a high probability of developing which of the following
A. Gastric ulcers.B. Esophageal stricture.C. Speech problems.D. Recurrent mild diarrhea with dehydration.
已知（F／A，10%，4）＝4.6410，（F／A，10%，5）＝6.1051，则5年、10%的预付年金终值系数为（）。
A、6.7156
B、5.5501
C、6.0373
D、7.3051
