移动端

  • 题王微信公众号

    题王微信公众号

    微信搜“题王网”真题密题、最新资讯、考试攻略、轻松拿下考试

单选题

流动式起重机箱型吊臂是通过()来实现的。

发布日期:2021-03-22

流动式起重机箱型吊臂是通过()来实现的。
A

机械伸缩机构

B

电气伸缩机构

C

液压伸缩机构

D

压缩空气伸缩机构

题王网让考试变得更简单

扫码关注题王,更多免费功能准备上线!

此试题出现在

特种设备作业人员技能考试

起重机械作业

去刷题
热门试题热门资讯 相关试题

以下哪项不是升浮药物的作用?(  )

Camping Camping wild is a wonderful way to experience the natural world and, at its best, it makes little environmental influence. But with increasing numbers of people wanting to escape into the wilderness, it is becoming more and more important to camp unobtrusively (不引人注目地) and leave no mark. Wild camping is not permitted in many places, particularly in crowded lowland Britain. Wherever you are, find out about organizations responsible for managing wild spaces, and contact them to find out their policy on camping and shelter building. For example, it is fine to camp wild in remote parts of Scotland, but in England you must ask the landowner's permission, except in national parks. Camping is about having relaxation, sleeping outdoors, experiencing bad weather, and making do without modern conveniences. A busy, fully-equipped campsite (野营地) seems to go against this, so seek out smaller, more remote places with easy access to open spaces and perhaps beaches. Better still, find a campsite with no road access: walking in makes a real adventure. Finding the right spot to camp is the first step to guaranteeing a good night's sleep. Choose a campsite with privacy and minimum influence on others and the environment. Try to use an area where people have obviously camped before rather than creating a new spot. When camping in woodland, a void standing dead trees, which may fall on a windy night. Avoid animal runs and caves, and possible homes of biting insects. Make sure you have most protection on the windward side. If you make a fire, do so downwind of your shelter, always consider what influence you might have on the natural world. Avoid damaging plants. A good campsite is found, not made — changing it should be unnecessary. In England you must ask the landowner's permission for camping, except in national parks.()

印度是世界最早的文明发祥地之一,并表现出独有的历史特征。右图图示所反映的制度是()

从发生早晚的角度看情绪与情感的差异()。

患者,男,56岁。睾丸坠胀冷痛半年,并有右侧少腹时痛,痛引会阴部,畏寒肢冷,舌淡苔白,脉弦有力。临床辨证是()

毒品定义三要素:()、()、()。

母公司成立专业自保公司在保险交易中()。

女性,38岁。劳累后心慌、气短、下肢浮肿、纳差5年,加重2周,体检:血压120/70mmHg,心尖区闻及3/6级收缩期吹风样杂音,半卧位,心率120次/min,心律规整,双肺底湿性啰音,肝肋下3cm,轻压痛,脾未及,双下肢浮肿。该病人的诊断为(  )。

高处作业人员应从规定的通道上下,不得攀爬();更不能乘坐非载人的垂直运输设备上下

小儿最常见的内分泌疾病是()

暂无相关推荐~