问题
名词解释
Intron
答案
参考答案：
是结构基因中的非编码序列，往往与编码序列呈间隔排列。
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Intron
参考答案：
是结构基因中的非编码序列，往往与编码序列呈间隔排列。
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| I'd be 16 in six days and was already prepared to deal with failure.I remember when my mum __1__ me up that morning, her voice wasn't as __2__ as it usually was. I stayed in bed for a few minutes.I was __3__ to leave its warmth and comfort, and didn't want to face the problem that I'd let myself __4__ for the past six months.Finally, I dragged myself out of __5__. I finished getting ready and tried to __6__.It didn't work, so I decided that my __7__ should go with me.We had a little time, so I thought we could practice parking.I __8__, with the wheel hitting the fence. After that, the little bit of confidence I'd had was __9__.I tried two more times, but didn't __10__ much. Then we headed to the test site. I went into a room for some paperwork.And I waited for 20 minutes-just __11__ time to make myself believe that I was going to fail.Then, finally, it was my __12__.I just wanted to get it over and make sure that I had to come back next Thursday. I stepped outside and the sky was the light blue I love.It offered me some __13__ and I realized something: something between when I pulled myself off the seat and when I got outside.I had become __14__ and confident. The first thing I had to do was parking, which I did quite __15__.The confidence that came with it hit me like a wave.The rest of the test went well too and I __16__ it all.As I drove back, the instructor told me I would not be coming back for a second __17__ next Thursday. Back in the building I didn't have to say a word.My mum knew just by looking at me.Her __18__ made her face softer.And I'm sure it was at least as big as the smile on my face.Her eyes, __19__, looked kind of tear.I knew she was __20__ for me. | ||||
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