问题
单项选择题
属于2，6-二去氧糖甲醚的是（）
A．D-洋地黄毒糖
B．D-洋地黄糖
C．D-加拿大糖
D．L-鼠李糖
E．葡萄糖
答案
参考答案：C
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属于2，6-二去氧糖甲醚的是（）
A．D-洋地黄毒糖
B．D-洋地黄糖
C．D-加拿大糖
D．L-鼠李糖
E．葡萄糖
参考答案：C
I had been playing hockey（冰球）for about 10 years. I was always the one sitting at the end of the bench, and 36 got into a game. I went to all the 37 and showed up even when it was so 38 that your ‘breath froze’ and when the otherplayers had decided to stay home. I felt I had 39 enough and thought of quitting. I finally decided to 40 the news to my mom that I was leaving the team. My mom may have looked like a tiny and quiet lady but on 41 my words, she said, “Remember, ‘A quitter never wins and a winner never quits.’ Your mother didn’t raise 42 , so think about yourself in a 43 way and see yourself as a winner!” So I worked harder than ever at getting in better shape, 44 my shot（投球） accuracy and changing my 45 . Once in a match, we 46 our first game badly. What’s worse, one of our best players got hurt. I was sitting at my 47 place, at the end of the bench, when the coach came over and told me I was going 48 . I was nervous, excited and terrified all at the same time. The opposing team was fast and I had to admit I was a little 49 . But my mom’s words 50 out in my head like a church bell. Instead of being afraid, I was “pumped” and I very quickly found that all my 51 work was paying off. I was as fast a skater as anyone else on the ice, and I seemed to get the 52 to score. The crowd went quiet. All the time I spent on the ice when everyone had gone home had 53 me for this moment. Won! I won! The lesson I learned from my mom’s 54 has stayed with me over the years. I hear them whenever I am faced with a challenge, or whenever I 55 myself.
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