采用会计电算化软件的单位，其会计档案保管期限与手工核算时相比，应该 ( )。

A．一致

B．有所差别

C．延长

D．缩短

Some house plants grow better if placed near a window with plenty of sunlight ______ others prefer to be in a more shaded spot.

A．unless

B．since

C．when

D．while