单项选择题
Official proof of a Chinese vessel’s nationality is contained in the （）.
A.Certificate of Inspection B.Official Log C.Certificate of Documentation D.Shipping Articles
单项选择题 A vessel used for international service shall possess （）valid for duration of charter party showing winches and derricks in order.
单项选择题 Which certificate is always issued by the China Classification Society（）.
单项选择题 The Tonnage Certificate indicates （）.
