【判断题】【消耗次数：1】
机械的功能是完成机械运动。
①
正确
②
错误
参考答案：
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相关题目
【多选题】
下列关于机械开挖正确的是（ ）。
①
机械挖土时，挖土机作业半径内不得有人进入
②
机械可以在输电线路一侧工作
③
配合挖土机的清坡、清底工人，不准在机械回转半径下工作
④
运土汽车不宜靠近基坑平行行驶，防止塌方翻车
⑤
机械开挖可以人员伴随施工边清边挖
【单选题】
当采用机械开挖时，下列做法错误的是（ ）。
①
机械挖土时应严格控制开挖坡度和分层厚度
②
配合挖土机的清坡、清底的工人，允许在机械回转半径下工作
③
向汽车上卸土应在车子停稳后进行，禁止铲斗从汽车驾驶室上越过
④
机械操作中进铲不应过深，提升不应过猛，作业中不得碰撞支撑
【单选题】
下列关于夯实机械的叙述错误的是（ ）。
①
蛙式夯实机作业时，应一人扶夯，一人传递电缆线，并应戴绝缘手套
②
蛙式夯实机多机作业时，其平行间距不得小于5m，前后间距不得小于10m
③
振动冲击夯适用于压实散状物料，不得在水泥路面和其他坚硬地面作业
④
强夯机械作业，从坑中提锤时，严禁挂钩人员站在锤上随锤提升
随机题目
【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
【单选题】
9.“Has he seen this film?” “Yes. He _______ it several days ago.”
①
saw
②
has seen
③
had seen
④
was seeing
【单选题】
2.She the door before she goes away.
①
had locked
②
is locking
③
has locked
④
was locking