主页
学科
搜索
账户
常见问题
当前学科：高压电工考试
题目：
单选
当一条导线的载流量不能满足要求，须将两条导线并联使用时，其额定电流（）两条导线额定电流之和。
A . A、等于
B . B、大于
C . C、小于
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
《钢结构工程施工质量验收规范》GB50205-2001及《建筑钢结构焊接技术规程》JGJ81-2002规定：设计要求全焊透的一、二级焊缝应采用超声波检测进行内部缺陷的检验，超声波检测不能对缺陷作出准确判断时，应采用（）检测。
关于感觉性共济失调正确的是（）
某公司拟从国外进口一套机电设备，重量1500吨，装运港船上交货价（FOB价）为400万美元。其他有关费用参数为：国际运费标准为360美元/吨；海上运输保险费率为0.266%；中国银行费率为0.5%；增值税的税率为17%；美元的银行牌价为1美元=6.1元人民币。则该设备的到岸价为（）万元。
在个性中具有核心意义的是（）。
以阿片类药物为主的麻醉性镇痛药不包括（）
Artist, scientist and entrepreneur are what most of us have known some or a lot about.【C1】______people would be surprised if somebody is perfectly good at one or two of these professions,【C2】______a hat-trick(帽子戏法)is quite rare. Man-kit Lam, now【C3】______in Hong Kong, in his 50s is the inventor of "special painting style", an accomplished【C4】______professor and biologist, and a rising key man with businesses in【C5】______the United States and Hong Kong. But Lam is most【C6】______as an artist, which is his passion(热望)since childhood. Lam was born in Chaoyang in South Chinas Guangdong Province and【C7】______with his family to Hong Kong【C8】______he was a child. A strong art lover, Lam displayed unusual artistic talents when he studied traditional Chinese ink painting【C9】______experienced and artistic Johnson Chou, Zhao Shaoang and Yang Shanshen in his【C10】______years. When he graduated from middle school, Lam asked his【C11】______to let him study art in college. They strongly objected, fearing that it would be too【C12】______for him to survive as a professional artist. "So I chose to study mathematics in college because it seemed to be the【C13】______to learn," Lam said. "To study【C14】______, you had to write papers. To study physics or biology, you【C15】______conduct experiments. But to study mathe matics, you only had to understand. " The young man had not【C16】______that he had special ability in science. After only six years of study in Canada, Lam got a bachelors degree in mathematics, a masters degree【C17】______physics and a doctorate in biophysics, the latter from the University of Toronto. In 1977, Lam went to the Baylor College of Medicine in Houston as an associate professor of ophthalmology(眼科学). In 1980, Lam was【C18】______to be the founding director of the Hong Kong Institute of Biotechnology, thus beginning his frequent shuttles(往返)between the United States and Hong Kong. In 1993, Lam【C19】______the Life Tech Group of Companies in the United States to develop, manufacture and market healthcare products. After Hong Kongs【C20】______to the motherland, Lam moved the headquarters of life Tech Group to Hong Kong and has lived there ever since.【C1】A．SomeB．ManyC．FewD．Lots of
尿细菌培养时，下列操作哪项是不正确的（）
（）是为地铁或轻轨车辆上空调、通风机、空压机及照明等辅助设备提供供电电源.
电子会计档案的销毁还应当符合国家有关电子档案的规定，并由单位档案管理机构、会计管理机构和信息系统管理机构共同派员监销.
有关选择抗生素治疗流行性出血热少尿期并发肺部感染，下列不妥的是（）