题目内容

简述贝类鳃的种类

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胶体稳定性

会计账簿按外表形式可以分为()。

A. 订本式账簿
B. 总分类账簿
C. 活页式账簿
D. 卡片式账簿

各级无线电监测站的主要职责是什么?

When inspecting a tank barge to see that it has all the required fire extinguishers and other safety items aboard,which of the following is the best source for determining what is required? ()

A. The supervisor in charge of the dock to which the barge is tied up
B. Part 38 of the Rules and Regulations for Tank Vessels
C. The Certificate of Inspection of the barge
D. The local fire marshal

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