合同终止的原因不包括（）
A.一方拒不履行合同
B.债务相互抵销
C.债权债务同归于一人
D.债权人免除债务
参考答案：A
This soccer team lost the game in the group match, for which they were seriously punished by the FIFA.
A. in common B. as usual C. by accident D. on purpose
分析模型法是用数学方法求解，采用排队模型（有三部分输入流、排队规则和服务机构），要解决三个问题即（）；（）；（）
