问题
选择题
无论是木锯还是钢锯,它们的锯齿都是东倒西歪的不在一个平面上,这是因为( ) A.使锯齿更锋利 B.使锯更耐受撞击 C.可以使锯口加宽,减小材料对锯的摩擦力 D.锯用得太久,齿被撞歪 |
答案
答案:C
无论是木锯还是钢锯,它们的锯齿都是东倒西歪的不在一个平面上,这是因为( ) A.使锯齿更锋利 B.使锯更耐受撞击 C.可以使锯口加宽,减小材料对锯的摩擦力 D.锯用得太久,齿被撞歪 |
答案:C
完形填空。 | ||||
Dear Bob, My name is Wang Jie. I want __1__ your pen pal. I live in Beijing, __2__ . I think Canada is a very beautiful __3__.I'm 14 years old and my birthday is __4__ September. I can __5__ a little English. I have __6__ brother or sister. I like to stay __7__ my classmates. We often play __8__ after school, such as football, basketball, tennis and running. My favorite __9__ at school is math. I don't like English. It's too _10__ . Let's be good pen pals. Yours , Wang Jie | ||||
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