The wheel’s order “port five” means that the ship is going to ________
A.turn back
B.turn around
C.turn about
D.alter course
第1题:
STCW78/95 Convention states that the officer in charge of the engineering watch is the representative
A.ship-owner's
B.master's
C.chief engineer's
D.manager's
第2题:
以下是四中元素的核外电子构型,未成对电子数最多的元素为
A.[Ar]3d64s2
B.[Ar]3d54s2
C.[Ar]3d34s2
D.[Ar]3d54s1
第3题:
下列元素原子半径的排列顺序正确的是()
A.Mg > S > Si > Ar
B.Ar > Mg > Si > S
C.Si > Mg > S > Ar
D.S > Mg > Ar > Si
第4题:
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the ______.
A.distress position
B.spoken words “Mayday, Mayday, Mayday”
C.ship’s name
D.ship’s call letters
第5题:
Cu2+的电子排布式为
A.[Ar]3d8 4s1
B.[Ar]3d7 4s2
C.[Ar]3d8
D.[Ar]3d9
第6题:
6、下列元素原子半径的排列顺序正确的是()
A.Mg > S > Si > Ar
B.Ar > Mg > Si > S
C.Si > Mg > S > Ar
D.S > Mg > Ar > Si