No sooner______ themselves in their seats in the hall than the speaker began his speech.

A．they settled

B．had they settled

C．did they settle

D．they had settled

人力资源管理产业模式的主要特点是( )。

A．强调团队合作、相互信任、思想观念的一致等

B．借助外脑、聘请顾问、权变的组织结构等

C．以劳动关系的协调为主

D．给员工更多的自主权、工作丰富化、培训和长期薪酬