乙酰化的酚醛树脂(初级形状)

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问题:

乙酰化的酚醛树脂(初级形状)

考点:海关报关员考试报关员
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读短文,判断正(√)误(×)。

      I get up at seven in the morning. I go to school at seven thirty. It's eight thirty now. It's time for English

class. I also have Chinese, math and P. E. in the morning. Miss Lin is my English teacher. I like her very much.

It's four thirty now. It's time to clean the classroom. At five o'clock I put on my white shoes and run, jump on

the playground. I go home at five thirty. I do my homework from eight to nine. Then I go to bed at nine thirty.

( ) 1. I go to school at six thirty. 

( ) 2. I have English at 8: 00.

( ) 3. I clean the classroom at 4: 30.  

( ) 4. I go home at 5: 00. 

( ) 5. I go to bed at 9: 30.

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工业企业为拓展销售市场所发生的业务招待费,应计入营业费用。 ( )

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拒不交还土地行为,包括两种情况:一种是依法收回建设用地使用权,当事人拒不交还土地的;另一种情况是临时使用土地期满,当事人拒不交还土地的。( )

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以下关于梅毒螺旋体的描述正确的有()

A.染色不易着色,又称苍白螺旋体

B.可以旋转、蛇行和伸缩三种方式运动

C.可接种于家兔睾丸进行保存及传代

D.-78℃下很快失去传染性

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丙二酸可以抑制琥珀酸脱氢酶的活性,这种抑制作用可以通过加大琥珀酸的量来抵消,所以丙二酸是琥珀酸脱氢酶的()性抑制剂。

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