问答题

When point G is added, DEFG is square. What are the coordinates of point G

【参考答案】

(1，6)求出正方形对角线的长度即可得出point G的位置。根据已知条件，可以得出对角线的长度为10，通过画图可以找......

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问答题

Each symbol (triangle, square, diamond and circle) in this table has a value. The total of these values in each row and column is written at the end of the corresponding row or column.Now write down the value of each symbol.

单项选择题

We can infer from the passage that ______.

A．before the Civil War, the Northern states needed more slaves to work for them
B．after the Civil War, there was a strong hatred from the Northern states against the Southern states
C．before the Civil War, the Northern states had a better economic system than the Southern states
D．before the Civil War, the Northern states had an economic system different from the Southern states

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