问题
单项选择题
1，2，13，25，48，______
A．92
B．90
C．81
D．83
答案
参考答案：D
解析： 第一项+第二项+10=第二三项，以此类推，25+48+10=(83)。
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1，2，13，25，48，______
A．92
B．90
C．81
D．83
参考答案：D
解析： 第一项+第二项+10=第二三项，以此类推，25+48+10=(83)。
As a volunteer teacher, I traveled a long way to a small village school in Longzhou, Guangxi. On my way there, I thought about the village, school and the children there. However, my heart sank when I arrived there. It was out of what I expected.小题1:________It has only three rooms; One is for Grade1,2and 3;One is for Grade4,5,and 6;And the third one is for me. 小题2:_______They asked me a lot of questions, and I told them stories about myself and my life in Shanghai. The next day, I gave them a test to find out their levels. To my surprise, though the test was very easy, over half of the students failed, yet they all wanted to learn new things.小题3:_______. I was busy preparing lessons and reading test papers every night. I enjoyed teaching these lovely and hard-working children, and I could see that they were making progress with my help.小题4:_______.I understand their lives more, and we are now good friends. 小题5:_______.I’m very happy and the experience has been very useful to me. I love the small village and the children. In fact, I would like to go on working there.
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