原始地球大气为还原性大气的原因是()。 ["不含氧气","不含二氧化碳","富含氢","富含甲烷"]
要维持一口井处于有控状态,就必须保证适当的()。 ["A、地层压力","B、承压能力","C、井底压力","D、套管压力"]
时间管理的策略应注意() ["学会记录","学会集中","学会授权","学会分析","学会总结"]
宜研成粉末冲服的是() ["A.龟甲","B.徐长卿","C.蛤粉","D.人参","E.三七"]
超覆不整合研究的意义() ["油气运移通道","形成良好的储层","形成多种圈闭","确定盆地边界"]
梨锈病病原菌的转主寄主是()。