“骨蚀”病名最早见于()。
A.《难经》
B.《五十二病方》
C.《内经》
D.《针灸甲乙经》
E.以上都不是
参考答案:C
收料单制作的要求是()。
A.审核料物
B.审核申购单
C.审核发票
D.审核质保书
Your vessel has been damaged and is taking on water,but you do not require immediate assistance. You would preface a message advising other vessels of your situation with().
A.Mayday-Mayday-Mayday
B.Pan-Pan (3 times)
C.Securite-Securite-Securite
D.SOS-SOS-SOS