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问题
计算题
解方程:x(x-2)-(2x-1)
2
=3(1-x)(x+1)。
答案
解:x=2。
选择题
读句子,选择对应的图片。
( ) 1. Jenny is playing the piano.
A.
( ) 2. They are singing happily.
B.
( ) 3. The wind blows the leaves off the trees.
C.
( ) 4. In Spring, the flowers bloom.
D.
( ) 5. They go to school by bus.
E.
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报关编码
城市垃圾
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