【单选题】听力原文:Were you able to schedule an appointment for Friday? (A) No, there wasn't any time available. (B) No, the apartment hasn't been sold. (C) Mr. Parker hasn't finished it yet. (8)
【判断题】在中性点非直接接地系统中,电缆线路采用零序保护时,电缆头外皮的接地线不能穿过零序保护用的电流互感器的铁心接地。
【判断题】越靠近接地故障点或跨步越大,跨步电压越小。
【单选题】在中性点非直接接地系统中,故障线路的零序电流与非故障线路的零序电流方向 ()零序电压90°
【单选题】我们有没有一些线索可以串联起来,以便更好地理解这件事?
A.
Do we have some wires and lines to piece together so that we can understand the thing better?
B.
Are there any clues and hints for us to piece together to gain a better understanding of the matter?
【单选题】My agenda is quite full for the whole week, so I can't()an appointment with you.
【单选题】翻译句子:我们有没有一些线索可以串联起来,以便更好地理解这件事?
A.
Are there any clues and hints for us to piece together to gain a better understanding of the matter?
B.
Are there any clues and hints for us to piece apart to gain a better understanding of the matter?
C.
Are there any clues and hints for us to piece together to gain a worse understanding of the matter?
D.
Are there any clues and hints for us to piece together?
【单选题】根据《安全标志》(GB2894),安全标志“禁止抛物”、“当心扎脚”、“必须戴防尘口罩”分别属于()。
【单选题】根据《安全标志》(GB2894一96), 安全标志'禁止抛物”、'当心扎脚”、'必须戴防尘口罩”分别属于 ( )。
【单选题】中性点非直接接地系统中,接地线路的零序电流方向是( )