试题与答案

在同一平面内,直线l1,l2相交于点O,又l3∥l2,则直线l1和l3的位置关系

题型:选择题

题目:

在同一平面内,直线l1,l2相交于点O,又l3l2,则直线l1和l3的位置关系是(  )
A.平行B.相交C.垂直D.平行或垂直

答案:

答案:B

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题型:填空题

根据短文内容及所给首字母填写所缺单词,每空格填一词。

        These years, with the development of society (社会), more and more teenagers have suffered from            stress. Some of the problems can make them feel very w     1     and unhappy all day. Who can help them?         A teacher from a college tried his best to help them. He thought of a lot of w     2     to help them. On

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         In a word, you can try to make you happy by yourselves. I'm sure you can be happy every day.

1. w             2.w             3. c             4. F            5. e              

6. d              7. m             8.a              9.s             10.s              

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