张女士，25岁，16岁初潮，月经史：8～10天/1～3个月，量中等，无_爱下问搜题

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问题单项选择题 A3/A4型题

张女士，25岁，16岁初潮，月经史：8～10天/1～3个月，量中等，无痛经，婚后夫妻同居3年未孕，经夫妇双方检查，男方精液常规正常，女方 * * 通畅。宫颈红，呈颗粒状，宫颈口见透明分泌物，宫体后位，正常大小、活动，附件未及异常，基础体温测定呈单相。

该妇女不孕的可能原因是（）

A.子宫后位

B.宫颈炎

C.无排卵

D.黄体萎缩不全

E.黄体发育不全

答案

参考答案：C

问答题简答题

焊接检验可分哪几个阶段？

完形填空

Recently, researchers in the US have carried out a study on laughing, one of the most natural characteristics of human behavior.
Jo-Anne Bachorowsky, a psychology professor at Vandebilt University, 36 a team of researchers who   37   a total of 11 short videos to 97 young adult volunteers in the US. They found that the participants produced a   38 of sounds when they laughed, 39 grunts(呼噜声) and snorts(哼声).
The researchers found that some of the   40   were dependent   41 gender(性别). Men laughed with grunts and snorts more often than women,   42 women’s   43   was more song-like.
They also found that people’s laughter could change,   44 who they were with at the time. Whether they were with a man or a woman and   45 person was a friend or a   46   both played a part in laughter.
The researchers found that women’s laughter was very high with a   47   pitch(音高) when they were with male strangers. And women taking   48   in the study laughed more often when they were with a male friend than when they were with a(n) 49   friend or a male stranger. But men laughed more freely with friends of either sex than with strangers of either sex.
Scientists believe that the   50   consumed in laughing 100 times is   51 to 15 minutes on an exercise bike. Another 52   of laughter is 53   it improves our mental health. Laughter reduces our levels of stress. It also helps us   54   serious illness.
  55 ,we think laughter can make us feel good.

B．differences

A．depending on

B．to depend on

D．depended on

B．All the same