1、In order to remit the traffic jam, either the government increases the tax of the private car nor develops the public transpotation.
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2、Internet is a double edge.; N6 K R4 b1 Z: k, ?% k1 j
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3、It comes to the species diversity, Australia is an typical example.$ J, U2 O7 |9 |/ |0 ]3 z. k6 t" L
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4、21th century required us to arm ourselves with the advanced knowledge.
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0 G4 B5 ]) [, |, z% u8 V; t5、Some poignant problems have appeared. |
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