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20 1 1 Hebei junior high school graduates' simulated examination paper (1) Mathematics
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1.C 2。 B 3。 A 4。 D 5。 B 6。 A seven. C 8。 B 9。 C 10。 D

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1 1. Root number 2- 1 12. ﹣ 3/7 13.﹣ 1 < x < 2 14.300+05 . 16686866867

17.3π 18.2 radical number 3

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