我国全面建设小康社会的奋斗目标提出:人均国内生产总值到2020年力争比2000年()。
A.翻一番
B.翻两番
C.翻三番
D.翻五番
参考答案:B
By convention,the north seeking ends of a compass’ magnets are colored().
A.Black
B.Blue
C.Red
D.White
Ship-to-ship distress alerting should be conducted by().
A.Inmarsat SES
B.VHF/DSC or MF/DSC
C.SART and VHF/DSC
D.Satellite EPIRB and VHF/DSC