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an endless source of energy, it will not run out of it for ____. A.several million years B.several hundred years C.several billion years D.several thousand years 参考答案： A A) B) C) D)----------------------------------------3Which of the following statements is correct? A.Energy from coal would not pollute our living environment. B.Energy from natural gas would not pollute our living environment. C.Energy from the sun would not pollute our living environment. D.Energy from oil would not pollute our living environment. 参考答案： A 24. A) B) C) D)----------------------------------------4Solar energy is now in its infancy, ____. A.but it will be considered as an important part of our nation s energy supply B.yet we will build more power plants C.and the supply of electricity will be rationed D.but we don t need practice energy rationing now 参考答案： A A) B) C) D)----------------------------------------5Which statement best expresses the main idea? A.Something about Solar Energy and Pollution. B.Solar Energy. C.Energy and Pollution D.Energy and Money. 参考答案： A 21. A) B) C) D)----------------------------------------1 A.dsB.dsfC.dsfD.sdE.sdf 参考答案： A sadsad----------------------------------------2 A.sadB.saC.aD.sa 参考答案： A sadsad----------------------------------------3 A.asB.asC.asD.sadE.sa 参考答案： A dffgfhdf----------------------------------------4 A.saB.sadC.saD.sa 参考答案： A sadsadsad----------------------------------------5 A.saB.dsC.dsfD.ds 参考答案： A sadsadsad----------------------------------------1可能诊断是 A.有机磷中毒B.COC.肝性脑病D.低血糖E.脑血管病 参考答案： B A 有机磷中毒B C D E----------------------------------------2为证实诊断应作检查 A.胆碱脂酶活力B.碳氧血红蛋白含量C.血氨D.血糖E.CT 参考答案： A A BCD E------------------------------------
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