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地区营销

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On inflatable liferafts,the operating cord should be renewed by().

A. cutting the old line off and renewing same
B. an approved servicing facility ashore
C. opening the case and replacing the entire line
D. one of the ship's officer

降低资金成本的途径有哪些?

配载运输

按JC/T547-1994中6.3.4规定测定界面砂浆压缩剪粘结强度,在G型砖正面涂上足够均匀的界面砂浆,往胶层上放置3根金属垫丝并使其插入界面砂浆层中约(),然后将G型砖正面与已涂界面砂浆样的G型砖错开10mm并()。

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