【单选题】小麦主茎基部节上发生分蘖,同时在同一节上长出次生根;分蘖长出_______片叶后,也从基部节上开始发生分蘖和次生根。
【单选题】男性,63岁,有上腹不适、恶心,呕血1000ml,既往无胃、十二指肠溃疡病史,有乙型肝炎病史10年。体检脉搏有力、不快,血压97.5/60mmHL。病人出血后采取的措施中不正确的是
【判断题】定向造斜段 :使用井下 动力钻具造斜,造斜段长度一般以井斜角达到8°~10°为准
【简答题】Why would an animal kill itself? It seems a strange question, and yet it is one that has made some scientists curious for a long time. For there is a kind of animal called lemming(旅鼠), that periodical...
【简答题】you should write the main idea of the text, after you have learned the Text 1
【单选题】弗洛伊德认为,心理健康发展的充分必要条件是( )。
【判断题】定向造斜段 :使用井下 动力钻具造斜,造斜段长度一般以井斜角达到8°~10°为准