多项式x2-9,x2+6x+9的公因式是______.
x2-9=(x+3)(x-3),
x2+6x+9=(x+3)2.
所以多项式x2-9,x2+6x+9的公因式是x+3.
治安管理处罚的适用主体是( )。
A.人民政府
B.公安机关
C.司法机关
D.社会团体
Thirty-five percent of the breaking strength of an anchor cable is generally accepted as the().
A.safe operating load
B.normal operating tension
C.emergency working load
D.allowable storm load