0  429591  429599  429605  429609  429615  429617  429621  429627  429629  429635  429641  429645  429647  429651  429657  429659  429665  429669  429671  429675  429677  429681  429683  429685  429686  429687  429689  429690  429691  429693  429695  429699  429701  429705  429707  429711  429717  429719  429725  429729  429731  429735  429741  429747  429749  429755  429759  429761  429767  429771  429777  429785  447090 

4、通常用来衡量一个国家石油化学工业发展水平标志的是(  )

A.石油的年产量           B.合成纤维的年产量 

C.乙烯的年产量     D.硫酸的年产量

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3、下列表示物质结构的化学用语正确的是 (    )

A.8个中子的碳原子的核素符号:12C   B.HF的电子式:

C.Cl离子的结构示意图:     D. CO2的结构式:O=C=O

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2、据报道,某些建筑材料会产生放射性同位素氡,从而对人体产生伤害,

该同位素原子的质子数是(   )

A.136      B.50       C.86       D.222 

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1、提出元素周期律并绘制了第一个元素周期表的科学家是(  

A.戴维    B.阿伏加德罗    C.门捷列夫   D.道尔顿

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5.(★★★★)She is wearing________.

   A.a silk new green cap B.a new silk green cap

   C.a cap of silk new green D.a new green silk cap

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4.(★★★★★)Where have you been?We have been looking for you________.

   A.these last all few days B.all few last these days

   C.all these last few days D.these all few last days

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3.(★★★★★)Yesterday we had a lecture given by a ________ teacher.

   A.well-mannered,young school B.young,well-mannered,school

   C.well-mannered,school young D.school well-mannered young

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2.(★★★★★)The Greens live in a________ house.

   A.big,white,two-story B.two-story,white,big

   C.white,big,two-story D.white,two-story,big

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1.(★★★★★)I’ll go to the supermarket with my grandfather.We are going to buy some________glasses.

   A.French lovely old B.lovely old French

   C.lovely French old D.old lovely French

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3.实质上多个形容词的语序是与被修饰的名词关系越密切的词越靠近名词。

   ●歼灭难点训练

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