[多选题]低压开关(熔丝)拉开(取下)后,应在适当位置悬挂( )或-我要搜题网

[填空题]Scientists believe that by raising atmospheric pressure and surface temperature, it is possible to transform the climate of Mars to the point where humans would be able to live there. The process by which a hostile or unsuitable environment is transformed into one that can sustain human life is called terraforming. In addition to potentially providing an alternate home for the people of Earth in the future, this undertaking may also allow scientists to test hypotheses about the process of global warming, which is a highly pertinent issue affecting our planet today.
Which of the following can be inferred from the passage regarding the Martian atmosphere
A. A．It has a lower pressure than Earth’s atmosphere.
B．It has a higher surface temperature than Earth.
C．It can most certainly be transformed to be more like Earth’s atmospher

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[单选题]关于风湿热环形红斑的描述，以下哪项是错误的
A.多见于躯干及四肢屈侧
B.呈环形或半环形，中心肤色正常
C.红斑出现缓慢
D.呈一过性
E.消退后不留痕迹

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[多项选择]下列说法正确的是( )
A. 中央特科由周恩来主持的中央特委直接领导
B. 中央特科是中国共产党在中央机关设立的最早的保卫组织
C. 中央特科为保卫党、保卫革命立下了不朽的功绩
D. 中央特科对以后公安保卫工作的发展起了重大的历史作用

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[判断题]作业前检查多电源和有自备电源的客户已采取机械或电气联锁等防止短路的强制性技术措施。
A.正确
B.错误

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[单选题]
在计算机内部,用来存储、传送、加工处理的信息表示形式是( )
A.内码
B.ASCII码
C.BCD码
D.二进制码

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[单项选择]

Putting Plants to Work

Using the power of the sun is nothing new. People have had solar-powered calculators and buildings with solar panels for decades. But plants are the real experts: They’ve been using sunlight as an energy source for billions of years.
Ceils in the green leaves of plants work like tiny factories to convert sunlight, carbon dioxide, and water into sugars and starches, stored energy that the plants can use. This conversion process is called photosynthesis. Unfortunately, unless you’re a plant, it’s difficult and expensive to convert sunlight into storable energy. That’s why scientists are taking a closer look at exactly how plants do it.
Some scientists are trying to get plants, or biological cells that act like plants, to work as miniature photosynthetic power stations. For example, Mafia Ghirardi of the National Renewable Energy Laboratory in Golden, Colo., is working with green algae. She’s trying to trick
A. It is not possible to remove sulfate from the environment.
B. It is not possible to work in an air-free environment to produce hydrogen.
C. It is not easy to make sugars instead of hydrogen.
D. It is too slow for algae to produce hydrogen when the sulfate is remove

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[判断题]在党支部换届选举工作中，上级党组织必须派人现场监督指导。
A.正确
B.错误

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[单项选择]最易发生颈淋巴结转移癌瘤是
A. 舌癌
B. 上颌窦癌
C. 牙龈癌
D. 颊黏膜癌
E. 唇癌

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[判断题]医学伦理与医学道德是相同的概念，两词可以通用。（）
A.正确
B.错误

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[单项选择]男性，15岁，少尿、水肿5天，咳嗽气短不能平卧1天，起病前2周喉痛3天，血压170／110mmHg，端坐呼吸，两肺底有散在湿啰音，尿比重1．022，尿蛋白（+++），红细胞30～90个／HP，血清补体C3降低该患者急性左心衰竭的原因是（）
A. 心脏后负荷过重
B. 心脏前负荷过重
C. 高血压心脏病心力衰竭
D. 急性肾炎致心肌损害
E. 以上都不是

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[单项选择]化学性质稳定，不容易被氧化的药物是
A. 麻黄碱
B. 异丙肾上腺素
C. 克仑特罗
D. 肾上腺素
E. 去甲肾上腺素

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[单选题]以下场所能够发放烟草专卖零售许可证的是(　　)
A. 小学
B. 初中
C. 高中
D. 托儿所

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[单项选择]根据建筑工程中钢筋工程的检验评定标准，进口钢筋在使用前需先经（），符合有关规定方可用于工程。
A. 冷拔性能检验
B. 冷弯试验
C. 化学成分检验和清洗
D. 化学成分检验和焊接试验

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[多项选择]在农电生产系统中，工器具类型包括（）
A. 安全工器具
B. 检修工器具
C. 试验工器具
D. 物资

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[判断题]人员下道避车的同时，必须将作业机具、材料移出线路，放置、堆码牢固，不得侵入限界，两线间不得停留人员，可以放置机具和材料。(　　)
A.正确
B.错误

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[多选题]低压开关(熔丝)拉开(取下)后,应在适当位置悬挂( )或( )标示牌。
A.“止步,高压危险!”
B.“禁止合闸,有人工作!”
C.“禁止合闸,线路有人工作!”
D.“在此工作!”

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[多选题]低压开关(熔丝)拉开(取下)后,应在适当位置悬挂( )或( )标示牌。A.“止步,高压危险!”B.“禁止合闸,有人工作!”C.“禁止合闸,线路有人工作!”D.“在此工作!”

热门试题:

[多选题]低压开关(熔丝)拉开(取下)后,应在适当位置悬挂( )或( )标示牌。
A.“止步,高压危险!”
B.“禁止合闸,有人工作!”
C.“禁止合闸,线路有人工作!”
D.“在此工作!”