甲、乙两公司签订一份专利技术转让合同，约定甲向乙转让其某产品的配方，乙应承担保密义务，并不得擅自允许第三者使用该配方。乙获得配方后，将配方允许其联营企业丙公司使用。而丙为牟利，将配方多方转让，致甲蒙受重大损失。对该损失，甲可要求( )承担违约责任。

A．乙

B．丙

C．乙和丙

D．乙或丙

The operation of the storage, processing and assembling of the bonded goods and consignment sales should be approved by and registered ______ the Customs.

A. for

B. by

C. from
D. with