【判断题】胚外中胚层细胞间出现腔隙,逐渐融合成胚内体腔。()
【判断题】整合接触是上下两套岩层的产状彼此平行,时代不连续
【单选题】Fighting a rig fire in a watertight compartment with hoses could reduce the stability of the rig by().
A.
progressive downflooding
B.
reducing the level of drill water from the storage tanks
C.
causing a list due to the water in the compartment
D.
reducing the KG to minimum allowable
【判断题】整合接触是上下两套岩层的产状彼此平行,时代不连续
【判断题】平行不整合接触是上下两套岩层的产状彼此平行,时代连续