问题
单项选择题
在有枪身射孔器中，（）是用来装载爆炸器材，使它们在井下不受钻井液压力的影响，实现聚能射孔的目的。
A、射孔枪的固弹架
B、聚能射孔弹
C、射孔枪
D、射孔枪枪身
答案
参考答案：C
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在有枪身射孔器中，（）是用来装载爆炸器材，使它们在井下不受钻井液压力的影响，实现聚能射孔的目的。
A、射孔枪的固弹架
B、聚能射孔弹
C、射孔枪
D、射孔枪枪身
参考答案：C
When I was young,I liked to play jokes on people I knew,especially on my parents and friedns.One day my mother was 46 and I was playing with my younger brother Tony. Suddenly I ran to my mother and said,“Tony fell from the open window!”She was very 47 and ran out of the kitchen.Then I said,“Don’t worry,I’m just 48 .”And my mother shouted at me,“If you do it 49 ,I’ll hit you.” One day I went swimming with my 50 in the sea.I wanted to play a joke on them.In the beginning,I went swimming 51 ,and I called out,“Help!”All my friends came to help me,only to 52 that I was joking.But the next time I wasn’t joking.I was so 53 that I swam in deep water. I tried my best to call my frineds for help,but this time nobody came to help me. 54 ,They found I was telling the truth.They came and saved my life.They took me to the hospital.This is the best 55 in my life.From then on,I haven’t joked on anyone.
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