1. 已知集合A={1,2,3,4}, B={-1,0,1},现建立从A到B的映射f:x→f (x),若f (1) < f (2)< f (3),则这样的映射共有 ( )
A.3个 B.9个 C.12个 D.16个
假如你是李明,你发现部分同学每次遇到重要考试,会很有压力并出现一些紧张迹象.请你用英语写一封信,向某学生英文报编辑反映该问题.信的内容应包括下列要点:
紧张迹象: 头晕、乏力、睡眠不好、食欲不振等;
老师的建议: 1.考前制定好合适的复习计划;
2.考试期间要有足够的睡眠,保持精力旺盛;
3.睡前洗热水澡、喝牛奶等有助于睡眠;
你的建议:……(至少两条,内容由考生自己拟定).
注意:1.根据以上要点写一封信的内容,不要逐句翻译,可适当增加细节以使行文连贯.
2.词数90左右;开头已写好,不计入总词数.
参考词汇:头晕-dizzy(adj.)
Dear Editor,
I am Li Ming in Junior Three,Guangming Middle school.I am writing to tell you most of us suffer from stress when we are taking an exam.
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Would you please tell us some more practical advice?
Best wishes!
Yours sincerely.
Li Ming
70.杰克真是自私,没有把他的玩具与别的同学分享.
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69.老人坚持说他儿子与这个案子无关联.
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67.自从2007年以来,这个学校的学生人数大大减少了.
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66.汤姆别无选择,只好放弃他的爱好.
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65.You can read the________(最新的)information about Dolly,the first cloned sheep in this magazine.
64.Would you please turn down the radio so that it will not__________(打扰)my baby’s sleep?
63.He’s__________(拒绝)to go to the party,so I have to go there instead.
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