题型:单项选择题 已知某非自喷井二开二关曲线,B1点压力=10MPa,C1点压力=11.26MPa,B2点压力=11.28MPa,C2点压力=21.36MPa,求产是按终流动曲线折算的,则其平均流动压为()MPa。A、10.63B、15.68C、16.32D、11.27 查看答案
题型:选择题 39. Once everyone is _____ his life, he will instinctively(本能) find every possible way _____.A.in danger of; out of dangerB.in the danger of; out of dangerC.in danger of; out of the dangerD.in the danger of; out of the danger 查看答案