It was after he got what he had wanted ________he realized it was not so important .

A．that

B．when

C．since

D．as

管理绝密级涉密载体，未经原定密机关、单位或者其上级机关批准，（）。

A、也可复制、摘抄

B、可适度摘抄

C、不得复制、摘抄

D、只能复制一份