【正文】 esour ces, water, economic development advant age advant age, advantage as policy overlap, cultur al enr ichment, and indust rial boards, insti utional weakness, shor t people short , shor t of funds and t alent . Fr om t he per spect ive of ecological envir onment , our egion as an import ant guarant ee of nat ional ecological saf ety, high f or est cover , wat er , air and soil environment al indicat or s, such as t he natur e, is t he development of green f ood and preser ving pension ideal places, forest carbon sinks and other indust ries. From t he per spect ive of the prior it y of characteristic r esources, wild blueberr y, Nort her n f orest r esour ces such as drugs, big snow, big wetlands, River and f orest tourism r esources, variet y, large reser ves of mineral r esources such as m olybdenum, lead and zinc, has t r anslat ed int o str ong material conditons for economic advantage. Economic development out of t he water, t otal m or e t han 16 bilon cubic meter s of sur face water r esources and hydroj unction project of development pr ospects。 A．彈性階段 B．屈服階段 C．強(qiáng)化階段 D．頸縮階段 5．圖所示構(gòu)件為 T 形截面，其形心軸最有可能的是（ ）。 A．任意移動(dòng) B．任意轉(zhuǎn)動(dòng) C．任意移動(dòng)和轉(zhuǎn)動(dòng) D．既不能移動(dòng)也不能轉(zhuǎn)動(dòng) 二 、判斷題（每小題 2 分，共計(jì) 30 分。 ( ) 8．安全因素取值大于 1 的目的是為了使構(gòu)件具有足夠的安全儲(chǔ)備。 ( ) 三 、 計(jì)算 題（共 40 分） 1． 計(jì)算 下 圖所示桁架的支座反力及 2 桿的軸力。s import ant speech spir it wit h you. Awar eness, deepen t he Count y, Gener al Secr et ar y f ur t her clarif y the t ransform at ional development, XI J inping str essed t hat XXX has it s advant ages, also have t heir own boar ds , key t o f ocus on weaknesses, shor t swagger gr ams, yangchangbuduan, int egrat ed eff ect of policy m easur es t owar ds t he t ar get solid f orward. This im por tant statement f or us t o do a good job providing a dialectical t hinking and t he scientif ic method, fuly embodies t he dialectical unit y of subjective and object ive law. We m ust speak to t he spir it f or guidance, and f urt her deepen under st anding, t ar geted t o l ng Yang well, Hawk shelt ers make good short, r eleased in f ul development potent ial. 一 . . Pot ential and the big f ive short Board, t hat is, ecol gical envir onment, resour ces, water, economic development advant age advant age, advantage as policy overlap, cultur al enr ichment, and indust rial boards, insti utional weakness, shor t people short , shor t of funds and t alent . Fr om t he per spect ive of ecological envir onment , our egion as an import ant guarant ee of nat ional ecological saf ety, high f or est cover , wat er , air and soil environment al indicat or s, such as t he natur e, is t he development of green f ood and preser ving pension ideal places, forest carbon sinks and other indust ries. From t he per spect ive of the prior it y of characteristic r esources, wild blueberr y, Nort her n f orest r esour ces such as drugs, big snow, big wetlands, River and f orest tourism r esources, variet y, large reser ves of mineral r esources such as m olybdenum, lead and zinc, has t r anslat ed int o str ong material conditons for economic advantage. Economic development out of t he water, t otal m or e t han 16 bilon cubic meter s of sur face water r esources and hydroj unction project of development pr ospects。 2020 lear ning im plement t o t ube m ain leaders topic seminar spir it counselling m at er ial 2020 learning im plement o tube main leaders t opic seminar spir it counselling m aterial M arch 7, XI Gener al Secretar y t o Ipr ovince delegat ion par ticipate in considered and published has im port ant speech, on XXX pr ovince people for China r evolution victor y and Socialist const ruct ion made of contr ibut ion give has cert ainly, on Ipr ovince past f ive year s im plement at ion focus str at egy, and gr asp focus indust ry, economic social development made of result s give has cert ainly, Clarif ied the demands f or development of XXX, r ef er ring t o bot h dir ect ions, tasks and issues, t eaching met hods, for t he cur rent and f uture development in Heilongjiang pr ovince, is of gr eat pract ical signif icance and far reaching hist orical signif icance. Mar ch 22 to 24th, pr ovincial held has province t ube main leader s t opic seminar, pr ovincial Secr et ar y Wang Xiankui r ade in seminar opening pr ovince do has import ant speech, Wang Xiankui st r essed: in depth learning acquisiton Gener al Secretar y of speech, is on XXX a polit ical account , we m ust put lear ning im plement XI Gener al Secretar y im por tant speech spir it as major polit ical t ask, adapt ed and led economic development new nor mal, insisted to economic const ruction f or Cent er not shake, implement im plementat ion ew development concept, weaknesses, and swager gr ams shor t, and yangchangbuduan, St imulate t he endogenous dynamics, f ormation eff ect of EMU, f ir m im plementation of the five planning, the development of key indust ries, open Dr agon River pr ehensive revitalization new journey, st ruggling t o get out of a high qualit y, ef ficient, bet ter st ruct ure and development r oad of r evit alizat ion of t he advantages int o f ul play. M ar ch 29 to 30th, t he Commit t ee anized a pi e major themat ic seminar of leading cadr es prefect ural rade J ia Yumei made an import ant speech at t he opening ceremony. J ia Shuj i str essed, f ul dist rict upper and lower must o ef f ect ive enhanced lear ning publicit y im plement implementation XI General Secr et ar y im port ant speech spir it of polit ical consciously, and t hought consciously, and action consciously and mission consciously, put lear ning XI General Secretary and pr ovincial Secr et ar y Wang Xiankui speech spir it as cur ent primar y polit ical t ask, t o m or e st rongly of att itude, and m or