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【简答题】
人教版七年级下册思想品德第三单元复习题答案
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【简答题】改错题: Ted, a British boy, along with his parents was invite to visit a Chinese calligraphy exhibition in London on last Saturday. They were exciting to have such a good chance to have a close look at t...
【简答题】On a welcoming party, the westerners were eager to know what the organization vice president were talking about when he was giving a speech. They asked an interpreter to translate the speech, soon the...
【单选题】下列各组向量中互相垂直的一组是( )
A.
a=(3,-1),b=(-3,1)
B.
a=(-3,4),b=(4,3)
C.
a=(2,3),b=(-2,-3)
D.
a=(2,-3),b=(3,-2)
【简答题】Section D 听力原文： Bells have been in existence for a long time. They were used by the Chinese about 6,000 years ago and the oldest bell ever found is around 7,000 years old. Today, we live in a world of...
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