（）是指由于客户经理的自身行为而产生的营销风险。
A.内部营销风险
B.客户经理风险
C.道德风险
D.操作风险
参考答案：A
Mike along with his mother _______ to blame for the mistakes they had made.
A. is B. was C. are D were
根据牙的外形，暴露在牙龈外面的叫牙冠，埋藏在牙槽骨内的叫牙根，牙冠与牙根交界的部位叫：（）。
A、牙颈
B、牙尖
C、牙髓
D、根尖
