[经] cost reimbursable and fee contracts

chéng běn bǔ cháng jiā fèi yòng hé tóng ㄔㄥˊ ㄅㄣˇ ㄅㄨˇ ㄔㄤˊ ㄐㄧㄚ ㄈㄟˋ ㄩㄥˋ ㄏㄜˊ ㄊㄨㄥˊ