下列叙述中正确的是( )。

A．软件交付使用后还需要进行维护

B．软件一旦交付使用就不需要再进行维护

C．软件交付使用后其生命周期就结束

D．软件维护是指修复程序中被破坏的指令

The goods which are carried into and out of the territory by the same vessel or aircraft are defined as

A．transit goods

B．transshipment goods

C．through goods

D．import and export goods