Service (71) Architecture aims to provide a model for the creation of service components in a wide range of languages and a model for assembling service components into a business solution-activities which are at the heart of building applications using a (72) architecture.
Service Data Objects aims to provide consistent means of handling (73) within applications, whatever its source or (74) may be. SDO provides a way of unifying data handling for databases and for services. SDO also has mechanisms for the handling of data while (75) from its source.

A．object-oriented

B．service-oriented

C．any

D．particular

甲与乙签订房屋买卖合同，将自有的一幢房屋卖给乙，并约定任何一方违约须向对方支付购房款25％的违约金。但在交房前，甲又与丙签订合同，将该房屋卖给丙，并与丙办理了过户登记手续。则下列说法中错误的是（）。

A．若乙要求甲支付约定的违约金，甲可以请求法院或仲裁机构予以适当减少

B．甲必须收回房屋并向乙方交付

C．丙取得该房屋的所有权

D．乙不能要求甲实际交付该房屋，但可以要求甲承担违约责任