【判断题】出现真空的流体,其相对压强为正值,绝对压强为负值。
【简答题】We are sending you herewith our contract No.9856 in duplicate (一式两份),with the request that you sign and return to us one copy of the contract at your earliest convenience. (翻译)
【单选题】We __ herewith our ladies catalogue for your reference.
【判断题】出现真空的流体,其相对压强为正值,绝对压强为负值。
【判断题】时代风貌是一个社会在短期内所显示的相对稳定的审美风貌。()
【判断题】出现真空的流体,其相对压强为正值,绝对压强为负值。
【单选题】We herewith two copies of our illustrated catalogue.