无形资产转让的最低收费额由（）决定。
A.重置成本
B.成新率
C.机会成本
D.收益期限
E.市场供需状况
参考答案：A, C
_______ they were not rich, they tried their best to send their child to the best school. [ ]
A. However
B. Because
C. Even though
D. So
《海药本草》的作者为（）
A．赵学敏
B．苏敬、李勣等
C．陶弘景
D．李珣
E．吴其濬
