单选题A heavy steel device that is set on the sea floor and used as a drilling template in offshore drilling operations is called a（）.Atemporary guide baseBpermanent guide baseCguide frameDfoundation template
单选题
A heavy steel device that is set on the sea floor and used as a drilling template in offshore drilling operations is called a（）.
A
temporary guide base
B
permanent guide base
C
guide frame
D
foundation template
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