You always come up with good solutions people's problems. [ ]
A. in
B. of
C. to
D. for
答案:C
每日的治疗费用为
A.总金额数/总DDD值B.总购入量/总DDD值C.总购入量/DDD值D.总金额数/总购入量E.总金额/单位
船坞chuán wù