海德提出的有关态度改变的理论依据是( )。
A．费力最小原则
B．符合需要原则
C．社会交换原则
D．平衡原则
参考答案：A
Fifteen university students from Changjiang University were playing near the river, _____ they heard two
little children _____ "help". [ ]
A. when; shouting
B. while; shouting
C. while; shouted
D. when; to shout
小额信贷通过客户选择技术来克服（）
A.信息不对称问题
B.放款速度问题
C.员工约束问题
D.员工激励问题
