问题
单项选择题
采用导管法灌注水下混凝土前，应对导管作( )。
A．承压和抗拉试验
B．水密和抗拉试验
C．闭水和抗拉试验
D．闭水和抗弯试验
答案
参考答案：C
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采用导管法灌注水下混凝土前，应对导管作( )。
A．承压和抗拉试验
B．水密和抗拉试验
C．闭水和抗拉试验
D．闭水和抗弯试验
参考答案：C
When I was a teenager I volunteered to work at the water station at a 10,000 m race. My 36 was to pass out water to the runners. I remember being so excited to see all the different kinds of 37 who passed by and 38 a cup of water. The next year I signed up for the 39 and gave it a shot. The first 10,000 m race was quite an experience. I jogged, I walked, I jogged and I walked. At times, I didn’t 40 if I could finish. At one point near the end, a 70-year-old man ran past me very 41 , and I felt embarrassed that I was 50 years younger than him and I couldn’t even keep up with him. I felt 42 for a second. But then I 43 something. He was running his race and I was running mine. He had 44 capacities, experience, training and goals for himself. I had mine. Remember my 45 was only to finish. After a minute, it 46 me that this was a lesson I could draw from . I learned 47 about myself in that moment. I turned my 48 into inspiration. I decided that I would not 49 running races. In fact, I would run even more races and I would learn how to train and 50 properly and one day I would be one of those 70-year-olds who were still running. As I 51 the finishing line, I was proud 52 my accomplishment. In life we all have those moments when we 53 ourselves to others. It’s only 54 . Don’ allow those moments to weaken you. Turn them into 55 and let them inspire you. Use them to show you what is possible.
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