Mike is always open ________ suggestions from his fellow workers
A.for
B.to
C.on
D.into
答案:B
以下哪项不属于新产品定价策略()。
A.撇脂定价策略
B.渗透定价策略
C.整数定价策略
D.满意定价策略
肝外胆管结石多为
A.胆固醇结石B.混合性结石C.黑结石D.胆色素结石E.黄结石