根据拼音写汉字。
①fěi翠( ) ②cāng茫( ) ③旁yì( )斜出 ④争yán( )斗艳
①翡;②苍;③逸;④妍
重要通道与控制室、保护室内必须安装事故照明,且必须与正常照明一起打开保证事故时照明正常。()
The KM for a vessel may be determined by which of the following?().
A.Adding the KB and the BM
B.Subtracting the KB from the BM
C.Subtracting the GM from the KB
D.Adding the GM and the KB