关于NAVTEX广播中搜救通知正确的是()。
A.不适用于遇险通信
B.不可以利用B2为D的NAVTEX报文广播
C.B3B4不可以为00
D.无具体规定
参考答案:A
The coffee is wonderful! It doesn't taste like anything I before.[ ]
A.was having
B.have
C.have ever had
D.had ever had
并联电抗器磁化特性,芯式电抗器组大约在()倍额定电压以上开始饱和。
A、1.2~1.3
B、1.5~1.8