主页
学科
搜索
账户
常见问题
当前学科:电工复审
题目:
单选
对称三相电源三角形连接时,线电压是相电压的()倍。
A . A、2
B . B、3
C . C、1
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:
通常情况下气测无异常、声波时差中等并呈台阶状、微电极具有正幅度差但较小、自然电位具有大的负异常是()特征。
芽胞的医学意义有()
Write down the numbers of the topic sentences in the following passages.(1)Jane and Karen have many things in common.(2) To begin with, both girls have the same background. (3)Jane was born and raised in the West, and so was Karen. (4)Next, both girls are interested in the same kinds of subjects in school.(5) Jane likes French, history, and English. (6)In the same way, Karen likes Spanish, history and English. (7)Furthermore, both girls want to be teachers. (8)Jane plans to become an elementary school teacher. (9)But Karen wants to be a high school teacher.(10) As you can see, the two girls are almost like twins.
可用于比较坐高与头围的变异度的是()
非洲群岛国家塞舌尔位于()地区。
由标准分派生出来的标准化分数,叫做()
简述起草集体合同的程序。
公共政策监控系统是指由政策系统内的人员和机构组成,对政策行为、政策方案的内容和执行,进行监督和控制的机构。()
精整对产品的质量起着最终的保证作用。
钻井液密度计包括钻井液密度计和支架两部分。