(x-)9的展开式的第3项是( )
A.-84x3
B.84x3
C.-36x5
D.36x5
答案:D
根据公式
(x-)9的展开式的第3项是,选D
In the context of company law, explain the ways in which a director may be appointed and removed. (10 marks)
签发外币银行汇票的冲正业务,如遇签发时系统联机收费,则()
A、仅将汇票本金冲正
B、仅将汇票手续费冲正
C、汇票本金及手续费一并冲正
D、以上都对