党对公安工作的绝对领导是我国公安工作的( )。
A．领导优势
B．政治优势
C．体制优势
D．组织优势
参考答案：B
It is these poisonous products _____ can cause the symptoms of the flu, such as headaches and aching muscles.
A．who
B．that
C．how
D．what
减速机齿厚磨损量的标准是什么？
