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【单选题】
直线3x一4y十5=0关于x轴对称的直线方程为A.
3x十4y十5=0
B.
一3x一4y+5=0
C.
3y一4x十5=0
D.
一3y十4x十5=0
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【简答题】第一节 短文改错 ( 共 10 小题;每小题 l 分,满分 10 分 ) In the summer holiday following my eigh birthday, I took driving lessons. I still remember how hard first day was. Before getting into the car, I thought I had...
【简答题】完形填空。 I am a student in Grade Three. I began to learn English the year before last. English isn't very l to learn. But I like it very much. 2 do I study English? In the first year; I found 3 very diff...
【简答题】晶体性质的基本特征之一是具有（）。
【简答题】短文改错 ( 共 10 小题;每小题 l 分,满分 10 分 ) 找出文章 10 个错误,依次写在下面横线上,如: a 改为 an , people 前插入 the, his 去掉等。 In the summer holiday following my eigh birthday, I took driving lessons. I still remember how hard fir...
【单选题】(2012·安徽高考)I remembered ________ the door before I left the office, but forgot to turn off the lights.
A.
locking
B.
to lock
C.
having locked
D.
to have locked
【单选题】—Oh, dear! I forgot the air tickets. —You ______ something.
A.
have left
B.
are always leaving
C.
are leaving
D.
always left
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