【单选题】【消耗次数：1】
汽车常在粉尘多的水泥厂工作，导致气缸与活塞组件磨损严重，这主要与（）有关。
①
零件的材料性质
②
零件的加工质量
③
外界环境
④
工作条件
参考答案：
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相关题目
【单选题】
零件的机械加工精度主要包括（ ）。
①
机床精度、几何形状精度、相对位置精度
②
尺寸精度、几何形状精度、装夹精度
③
尺寸精度、定位精度、相对位置精度
④
尺寸精度、几何形状精度、相对位置精度
随机题目
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6. I think science is ____than Japanese.
①
much important
②
important
③
much more important
④
more much important
【单选题】
5. His father began to work ____he was seven years old.
①
as old as
②
as early as
③
as soon as
④
as much as
【单选题】
13. The house is ____ small for a family of six.
①
much too
②
too much
③
very tall many
④
many very tall
【单选题】
10. It was very hot yesterday, but it is ____today.
①
even hotter
②
more hotter
③
much more hot
④
much hot
【单选题】
12. When we arrived, we found the meeting room crowded with ____ students.
①
quite a few
②
only a few
③
few
④
a few quite
【单选题】
9. These children are ____this year than they were last year.
①
more tall
②
more taller
③
very taller
④
much taller
【单选题】
1. This box is ____that one.
①
heavy than
②
so heavy than
③
heavier as
④
as heavy as
【单选题】
14. Through the window we can see nothing but ____ buildings.
①
tall very many
②
very many tall
③
very tall many
④
many very tall
【简答题】
Thousands of years ago in Egypt (埃及)， Kings built the pyramids (金字塔). They used to build them as their tombs (坟墓). The kings thought the pyramids would help them find life [填空1]death. They also wanted the world remember them as important people. Some pyramids were for queens, but they are [填空2]interesting because they are not so big. The[填空3]pyramid that we know today is the pyramid that we know today is the pyramid near Sahara ( 撒哈拉沙漠) in Egypt. It is about 5,000 years old. There are many pyramids along the Nile River (尼罗河). The largest is the pyramid of Khufu (法老胡夫). It is made of two million three hundred thousand huge stones, most of [填空4]higher than a person. It is about 144 meters high. Inside the pyramid[填空5]the burial rooms (墓室）for the king and queen and long passage (通道) ways [填空6]these rooms. The rest of the pyramid is solid (坚固的) stone. We know there were wonderful[填空7]in the pyramid. Robbers[填空8]into the pyramids and took many of these treasures (财宝). Today some of the treasures are in museums [填空9]. How did the people of ancient [填空10]build the pyramids?How did they carry and lift the huge stones? Each stone [填空11]so well and they didn’t have our[填空12]machines. Scientists[填空13]the pyramids but nobody can say just how they [填空14]. Some day if you can, you ought to go to see the pyramids. I[填空15]you that they would be amazing.1. A. beforeB. afterC. behindD. in front of2. A. moreB. lessC. noD. very3. A. eldestB. youngestC. oldestD. smallest4. A. themB. whomC. whichD. that5. A. there areB. there isC. areD. is6. A. toB. withC. forD. in7. A. treasureB. treasuresC. moneyD. gold8. A. cameB. wentC. brokeD. walked9. A. thoughB. howeverC. everD. since10. A. dayB. momentC. momentsD. days11. A. wearsB. fitsC. liftsD. carries12. A. freshB. electronicC. modernD. scientific13. A. have studiedB. will studyC. studiedD. were studying14. A. have done thatB. did soC. did itD. are doing it15. A. sureB. assureC. insureD. ensure