30岁初孕妇，患二尖瓣闭锁不全，现妊娠28周，LOA心功Ⅱ级，来围_爱下问搜题

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问题单项选择题

30岁初孕妇，患二尖瓣闭锁不全，现妊娠28周，LOA心功Ⅱ级，来围生期门诊检查，咨询对于心脏负担最重的时期，应为下述哪项

A．孕27～28周

B．孕29～31周

C．孕32～34周

D．孕35～37周

E．孕38～40周

答案

参考答案：C

单项选择题

Questions 14 to 16 are based on a news report about retirement. You now have 15 seconds to read questions 14 to 16.

When searching for a retirement community, what would you consider the most

A．The fun amenities.

B．Security and hygiene.

C．Tea times and tennis.

D．A pool or a spa.

问答题简答题

纸质《单位基本情况表》保存期限多长？