He was accused _____taking ______drugs when he was at school , so he was questioned by the police.

A．of; up ;

B．for; down

C．of ; on

D．from; into

建设工程平行承包模式下，需委托多家工程监理单位实施监理时，各工程监理单位之间的关系需要自（）进行协调。

A．设计单位 

B．建设单位 

C．质量监督机构 

D．施工总承包单位