一般实验室测定的是游离态碳的含量。
参考答案:错
认为社会分层是社会不平等的体现,是社会运行过程的需要,这是社会分层理论流派中的( )
A.进化论
B.冲突论
C.功能论
D.交换论
A vessel restricted by its ability to manoeuver by the nature of its work or its deep draft is().
A.hampered vessel
B.giving way vessel
C.vessel not under control
D.disabled vessel