四轴货车空气悬架、轴距长度为()时，我省计重收费车辆的车货总重认定标准为37吨。

A student went to college after 21 all his school examinations. There he put his name down for world geography,22 after the first day, he did not go to 23 any more. The teacher noticed that this student was 24 absent and thought that he had changed to25class. He was very 26 when he saw the boy's name on the list of students 27 wanted to take the geography examination 28 the end of the year. The teacher had prepared a difficult examination paper, which covered 29 he had taught,and he was eager to see 30 this student answered the questions. He expected that his answer would be very 31; but when he examined his paper carefully, he found only one small mistake in them.32 this surprised him very much, he went through the paper 33, but was still not able to find 34 one mistake, so he sent 35 the student to question him about his work. When the student had 36 the room, the teacher said to him, 'I know that you came to my class only once on the first day and that you have been absent from all the others. Yet I have found only one small mistake in your paper.37 is that? ' 'Oh, I'm sorry about that mistake, sir,' answered the student. 'After the examination, I realized 38 I ought to have written. I would not have made that mistake 39 I had not been confused by your 40 lecture.'A. havingB. taking A student went to college after 21 all his school examinationsC. passingD. failingThere he put his name down for world geography,22 after the first dayA.soB.butC.howeverD.andThe teacher noticed that this student was 24 absent and thought that he had changed to25classA.alwaysB.onceC.neverD.sometimes 点击查看答案

对进出石家庄内陆港的合法集装箱运输车辆，征收的车辆通行费在按省政府批准的《我省收费公路载货车辆计重收费费率标准》计算的基础上给予()的优惠。

A、50%
B、20%
C、30%
D、免收通行费

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