问题
多项选择题
在极限承载力状态下，上部荷载由桩尖承受的桩是（）
A、保护孔口
B、定位导向
C、增加孔内水压
D、减少钻进阻力
答案
参考答案：A, B, C
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在极限承载力状态下，上部荷载由桩尖承受的桩是（）
A、保护孔口
B、定位导向
C、增加孔内水压
D、减少钻进阻力
参考答案：A, B, C
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| For many young people, becoming a professional athlete might seem like a dream job. If you become a professional athlete, you'll be able to make a living by doing something you love. If you become famous, people all over the world will know you. Many athletes give money to schools and charities,and do a lot of work to help people. This is a great chance thatmany people do not have. However,professional athletes can also have many problems. If you arefamous,people will watch you all the time and follow you everywhere.This can make life difficult. If you play sports for a living, your job will sometimes be very dangerous. Many professional athletes get injured. And if you become rich, you will have a difficult time knowing who your real friends are. In fact, many famous people complain that theyare not happy. They say they were happier before they became rich and famous. | ||||
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