【单选题】I have __________ the problem for two hours, but I haven't __________. [ ]
A.
worked on, worked out it
B.
worked at, worked it out
C.
worked on, worked it out
【单选题】—I failed again. I wish I ____ harder. ---But you ____.
【单选题】下列不属于发动机电控系统的执行器有( )
【单选题】I worked on the problem ____ a long time and I worked it out ____ myself ____ last. [ ]
【多选题】关于代理报检单位,下列表述错误的有( )。
A.
代理报检单位及其报检员涉嫌触犯刑律的,移交司法部门按刑法的有关规定追究其刑事责任
B.
代理报检单位对实施代理报检中所知悉的商业秘密不负有保密义务
C.
代理报检单位及其报检员在从事报检业务中违反有关法律、法规的,移交司法部门按刑法的有关规定追究其刑事责任
D.
代理报检单位不得出借其名义供他人办理代理报检业务