孕妇，25岁，G1P0，40周妊娠，宫口开全，胎儿偏大，接产时需做会

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问题单项选择题

孕妇，25岁，G1P0，40周妊娠，宫口开全，胎儿偏大，接产时需做会阴侧切术，术前行局部阻滞麻醉，阻滞哪条神经

A．直肠下神经

B．会阴神经

C．阴部神经

D．阴唇后神经

E．坐骨神经

答案

参考答案：C

听力题

用所给单词的适当形式填空，使句子意思完整，正确。

小题1:I’m very grateful for Mr. Johnson’s help with my job, so I will thank him __________ (personal).

小题2:I must __________ (apology) for not letting you know the plan ahead of time.

小题3:The __________ (perform) of the street artist was so great that it attracted the attention of all passers-by.

小题4:He is looking forward to __________ (admire) the classic music by Beethoven at the concert.

小题5:_________ (confident) is the first step to success.

小题6:Don’t worry. The problem has been __________ (solve).

小题7:Then the question __________ (arise) at the meeting, but no one knew how to answer it.

问答题简答题

燃气燃烧需要带压空气和氧气时，应有防止空气和氧气回到燃气管路和回火的安全措施，并应符合什么要求？