单项选择题

几个电路元件沿着单一路径互相连接，每个节点最多只连接两个元件，此种连接方式称为( )。
A、串联
B、并联
C、单联
D、联通

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单项选择题

关于习惯性流产以下哪项错误

A.自然流产发生3次或3次以上者
B.每次流产多发生于同一月份，其临床经过也大致相同
C.染色体异常为早期习惯性流产的常见原因
D.宫颈机能不全为晚期习惯性流产的常见原因
E.习惯性流产多无自觉症状

单项选择题

Trevelyan & Co. is being sued for damages. When preparing its 2002 financial statements the directors took the view that the likelihood of any payments having to be made to the claimant was remote. In preparing the 2003 financial statements their view was that it was possible that such payments would have to be made, and in preparing the 2004 statements their view was that such payments were probable.For the 2005 statements there was virtual certainty that the payments would have to be made. The payments were actually made in 2006.In which financial statements must a contingent liability first be disclosed?

A．2003
B．2004
C．2006
D．2002

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