圆心在直线y=-4x上,并且与直线l:x+y-1=0相切于点P(3,-2)的圆的方程为( )。
(x-1)2+(y+4)2=8
—Was it Peter who broke the window?
—No, he wasn't here yesterday. He had ______ to do with it. [ ]
A. nothing
B. anything
C. something
D. everything
下列属于交易所交易的衍生工具的是( )。
A.在期货交易所交易的期货合约
B.公司债券条款中包含的转股条约
C.公司债券条款中包含的返售条约
D.公司债券条款中包含的赎回条约