原式=(2-1)+(3-2)+…+(9-8)
=2-1+3-2+…+9-8
=9-1
=3-1
=2.
故答案为:2.
A notice was put ___ on the bulletin board saying that Tom would be put ___ as the candidate for the position of the general manager.
A.off, up
B.out, down
C.up, up
D.away, in
农行承兑汇票实施细则规定,向银行申请承兑的商业汇票出票人必须在其购销合同中约定使用()结算方式.
A.银行汇票
B.本票
C.商业承兑汇票
D.银行承兑汇票