Your project is behind schedule due to conflict between team members. Having resolved the conflict, to get the project back on schedule, you should consider ______ .

A．crashing the schedule

B．performing resource leveling

C．conducting reverse resource allocation scheduling

D．utilizing the critical chair resources

造成脱钩事故的主要原因是（）。

A.吊钩缺少护钩装置

B.护钩保护装置机能失效

C.吊钩钩口变形引起开口过大

D.吊装方法不当