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
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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
单项选择题
对于习惯性流产的处理，以下哪项错误
A.有习惯性流产史者，孕前应系统检查，查出原因若能纠治者应于孕前积极治疗
B.原因不明的习惯性流产，妊娠后连续予黄体酮治疗直到超过以往发生流产的月份
C.宫颈内口松弛未妊娠者应于孕前作宫颈内口修补术
D.宫颈内口松弛已妊娠者于孕16～20周作宫颈内口环扎术，待分娩发动前拆除缝线
E.习惯性流产发现胚胎发育异常者，夫妇双方应进行染色体检查
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