He insisted that he ________ the bike and therefore __________.

A．shouldn’t steal; shouldn’t be punished

B．hadn’t stolen; shouldn’t be punished

C．didn’t steal; wasn’t punished

D．not steal; not be punished

中水管道不宜暗装于墙体和楼板内，如必须暗装于墙槽内时，必须在管道上有明显且不会脱落的标志。