【单选题】对于变电所,以下说法正确的是()。
A.
电力系统中的大型变配电所一般采用独立式,工厂的总变配电所则采用半露天式。
B.
杆上变电台最为简单经济,一般用于容量在315KVA及以下的变压器。
C.
露天或半露天变电所比较简单经济且通风散热好,所以主要用于坑道作业及临时是施工现场。
D.
生产面积比较紧凑和生产流程要经常调整设备也要相应变动的生产车间多采用移动式变电所。
【简答题】In the past few years, several plagiarism (抄袭,剽窃) cases have been exposed in China; some involve professors and famous scholars while some others involve graduate students who are working as researche...
【简答题】英译中 As the dome grows, it develops seed fissures(cracks); in at least a few cases the continent may break entirely along some of these fissures, so that the hot spot initiates the formation of a new o...
【判断题】杆上变电台最为简单经济,一般用于容量在315KVA及以下的变压器。()
【单选题】The newspaper uses a few recent cases to ________ how the law works
【单选题】杆上变电台最为简单经济,一般用于容量在()下的变压器。
【单选题】( 36 )关于 IP 数据报报头的描述中,错误的是
A.
) 版本域表示数据报使用的 I P 协议版本
C.
) 头部校验和域用于保证 IP 报头的完整性
【单选题】The expression in very few cases could more concisely be stated as ______.
【简答题】杆上变电台简单经济,一般用于用于容量在 及以下的变压器;
【单选题】There are probably very few cases in which different races have lived in complete in a single country for long periods.