问题
单项选择题
在下列原因中不是造成推焦困难的原因是（）。
A、加热温度不均匀，造成炉温过低
B、焦饼收缩不够，推焦阻力过大
C、炭化室顶及炉墙石墨沉积过多
D、集气管压力大，且波动比较频繁
答案
参考答案：D
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在下列原因中不是造成推焦困难的原因是（）。
A、加热温度不均匀，造成炉温过低
B、焦饼收缩不够，推焦阻力过大
C、炭化室顶及炉墙石墨沉积过多
D、集气管压力大，且波动比较频繁
参考答案：D
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| One summer in college, I was invited to be an instructor at a high school leadership camp. I first 1 a boy under the tree on the first day of camp. His obvious 2 and shyness made him appear weak and lonely. Nearby, 200 3 campers were playing and joking, but the boy seemed to want to be anywhere 4 where he was. I was instructed to care more about campers who might feel 5 . So I 6 him and said, "Hi, I'm Kevin. It's nice to meet you. How are you?" 7 a shaky voice he 8 answered, "Okay, I guess." I calmly asked him to join in the activities and 9 some new people. He quietly replied, "No, this is not really my thing." I could 10 that this whole experience was 11 to him. But I somehow knew it wouldn't be right to 12 him, either. It was going to take more time and 13 . The next day, I was leading camp songs for the campers. They eagerly participated. But the boy was just sitting alone, 14 out the window. That evening at our nightly staff meeting, I made my 50 about him known. I asked them to pay special attention and spend time with him 51 they could. The days flew by fast. When the "last dance" came, surprisingly, the boy from under the tree was now a shirtless dancing 52 . He owned the dance floor 53 meaningful time with others. I couldn't' believe it was him. In that instant, I realized how easy it is to give a bit of 54 every day. You may never know how much each gesture may mean to someone else. I tell this story as 55 as I can, and I advise others to look out for their own "boy under the tree." | ||||
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