液压支架接顶严实,顶梁平整,最大仰(俯)角不超过()
A、10°
B、5°
C、7°
参考答案:C
烧伤后防止急性肾功能衰竭的关键措施是()
A.及时有效的液体复苏
B.早期应用抗生素
C.早期清创,去除坏死组织
D.避免应用对肾脏有害的药物
E.利尿、碱化尿液
()analysis emphasizes the drawing of pictorial system models to document andvalidate both existing and/or proposed systems. Ultimately, the system models become the()for designing and constructing an improved system. ()is such a technique. Theemphasis in this technique is process-centered. Systems analysts draw a series of processmodels called (). ()is another such technique that integrates data and processconcerns into constructs called objects.
()analysis emphasizes the drawing of pictorial system models to document andvalidate both existing and/or proposed systems
A.Prototyping
B.Accelerated
C.Model-driven
D.Iterative