问题
单项选择题
登革病毒属于下列哪一类型病毒（）
A.披盖病毒科中的黄病毒属
B.比布尼亚病毒科的汉坦病毒属
C.小核糖核酸病毒科的肠道病毒属
D.棒状病毒科的拉沙病毒属
E.嗜肝脱氧核糖核酸病毒科中的哺乳动物病毒属
答案
参考答案：A
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登革病毒属于下列哪一类型病毒（）
A.披盖病毒科中的黄病毒属
B.比布尼亚病毒科的汉坦病毒属
C.小核糖核酸病毒科的肠道病毒属
D.棒状病毒科的拉沙病毒属
E.嗜肝脱氧核糖核酸病毒科中的哺乳动物病毒属
参考答案：A
I once worked in a charter school(特许公立学校)．There students with serious problems were put in ___ .So when the year ended in May，only ____students sitting in the classes had been there since the doors____ in August. Chad was one of them.He started out in my first semester ___ class.He had taken the course twice already ____ earning a credit(学分)，which was ____ at the school.He was too excited at times but fairly bright，and he never ____ a day of school during the first semester.Chad earned credit for first semester Spanish and moved on to the second. I noticed a huge ____ in him when he returned from Christmas vacation.He was quieter and worked harder.I was ____ by his big improvement.Towards the end of the spring semester，Chad missed several weeks of school.When he returned.He told me he was soon being sent to “yearround school”． I ____ the “yearround school” was prison.I was _____ to learn that he had broken into someone's house.____ I wanted to give him an award，some teachers said，“You should give the award to someone else.” I considered it.____ in the end I decided to ____ Chad only on what he had done in my class. Chad's sentencing had been delayed, and he ____ to school that day.He ___ reacted when I gave him an award for Most Improved.He hugged me ____ and said，“Thank you.Now I have___to show my mom.” Chad didn't finish second semester Spanish，and he never got ____ for the course.But I'd like to think that ____ made a difference in his life.
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