问题
单项选择题 A1型题
输卵管结扎术失败的原因，下列哪项正确（）
A.结扎选择在排卵后，可能已经受孕
B.结扎后输卵管再通
C.结扎后形成输卵管瘘
D.新生伞的形成
E.以上均正确
答案
参考答案：E
搜题请搜索小程序“爱下问搜题”
输卵管结扎术失败的原因，下列哪项正确（）
A.结扎选择在排卵后，可能已经受孕
B.结扎后输卵管再通
C.结扎后形成输卵管瘘
D.新生伞的形成
E.以上均正确
参考答案：E
Are you intere  sted in country music? I like it very much! It will take me away for a while after I am tired .The guitars and songs will take me to mountains and fields.Country music usually talks of everyday life and feelings. It’s the spirit of America, easy to understand, slow and simple. Country music developed in the Southern United States. It was the folk music of American countryside. Many of songs tell about the lives of  famers .They talk about love, crops or death. The life of the countryside can be hard, so the words in country music are often sad. At first, people played the music only at family parties. But it became more popular later. In the 1920s, people played country songs on the radio, and they made them into records. When people in the countryside moved to towns and cities to look for work, they took their music with them. Country music continued to change and became popular across America. John Denver was one of America’s most f  amous country singers in the 1970s.His song “Take Me home, Country Roads” is well-known and people still play it today.小题1:Country music is usually about _______.
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