公安赔偿制度是指当公安机关及其人民警察违法行使职权造成公民、法人或者其他社会组织合法权益损害时,由公安机关依法承担赔偿的制度。( )
参考答案:错
设等差数列的首项及公差均为非负整数,项数不少于3,且各项之和为972,这样的数列共有______个.
—Oh, you look tired. Why?
—I ________ to the Great Wall yesterday. It was really wonderful.
A.went
B.will go
C.goes
D.go