线性尺寸一般公差规定了()个等级。 A.三 B.四 C.五 D.六

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问题:

线性尺寸一般公差规定了()个等级。

A.三

B.四

C.五

D.六

考点:数控车工考试高级数控车工高级数控车工题库
题型:单项选择题
用方框中所给单词的适当形式填空,使短文通顺、正确、连贯 (每个单词限用一次)。
then;   do;  ;   right;   show;   different;   who;   late;   easy;  memory
Did your parents make you take music lessons? Recent research has   小题1:  that people who studied music as a child are able to remember words much better than people   小题2:  musical training. One experiment was  小题3: with sixty female American college students. A similar study was carried out with ninety boys in Hongkong of China. In both cases, students had to  小题4:words and pictures.  小题5:  they were asked how many they remembered. Scientists found that students   小题6: studied music were better at remembering words, but both groups remembered the pictures equally well. Perhaps it is   小题7:to use your imagination to associate(联想) pictures with things in your life. Also, you can make up stories for pictures.
Scientists explain the   小题8:  by saying that both musical memory and verbal (written or spoken words) memory are located in the left side of the brain. Visual memory, the kind needed for pictures, is located in   小题9:  half of the brain. Since verbal memory is very important for success at school, researchers now think that taking music lessons can give you a real academic advantage. In fact, when the students were tested a year   小题10: , the students who had stopped taking lessons still did well on verbal memory. Maybe it’s time to give music lessons a try.
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有人说,“对于苏俄农民而言,1920年的秋天阴云密布,1921年的春天阳光灿烂。”这里“阳光灿烂”是因为                                               

A.扩大集体农庄自主权

B.国家无代价征收余粮

C.允许私人经营中小企业

D.农民可以自行处置余粮

题型:单项选择题

系统地收集有关学生学习行为的资料.参照预定的教学目标对其进行价值判断的过程称为()

A.教学测验

B.教学评价

C.教学测量

D.教学鉴定

题型:单项选择题

计算机病毒可以使整个计算机瘫痪,危害极大。计算机病毒是

A.一种芯片

B.一段特制的程序

C.一种生物病毒

D.一条命令

题型:单项选择题

依维柯共轨发动机(欧三)保养工艺要求,预热启动发动机的技术标准机油压力不低于:低怠速≥1bar,最高转速时≤6bar。

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