9。Cost of Bidding ..................................................................................................................................... 12 10.Language of Bid .................................................................................................................................... 12 11.Preparation of Bids ................................................................................................................................ 13 12.Documents Comprising the Bid ............................................................................................................ 13 13.Bid Submission Sheet ........................................................................................................................... 13 14.Bid Prices and Discounts....................................................................................................................... 14 15.Currencies of Bid .................................................................................................................................. 14 16.文件确定投标人的资格.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Documents Establishing the Qualifications of the Bidder ..................................................................... 14 18.Period of Validity of Bids ..................................................................................................................... 14 19.出价安全或出价确保声明.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Format and Signing of Bid .................................................................................................................... 16 D Submission and Opening of Bids ............................................................................ 16