【正文】 0 分。 recoverable reser ves of high qualit y mineral wat er r esour ces milon t ons, is t he base of r are natural and polut ionf ree mineral wat er . Seen f rom t he advantages of cult ur al enrichment , wit h Nort hern cult ur e, and Xianbei cult ures, Oroqen cult ur e and a num ber of cult ural r esources, r ock only f ound more t han 1000 paint ings, cult ural indust ry development has great potential. From t he perspective of policy over lap advantage, wit h the State Forest ry Administr at ion and t he provincial government t wo channels of policy towards dir ect enjoyment of nat ur al f or est protect ion progr am, Western development , r esource based cit ies sust ainable developm ent and main f unction r egion construction national policy planning. As long as we put t hese r esources t o use and exploit t he advantages of good, could give guanghui, snow, cold region and black Glebe into gold and silver , wil pr ovide strong suppor t f or f orest development. (I n addit ion t o J ia Shuji m ent ioned advantages, XX we have in agricult ur e, water conservancy and other unique r esources. Agr icult ural r esources, 1. 129 milon mu of ar able land thr oughout he County, da hingan Ling was the only pr edominant ly r ur al administ rat ive dist ricts, gr een plant ing area of 850,000 acres. Wat er r esour ces, in a r iver over more t han 180, m any r iver hydr opower developm ent pr oj ect condit ions, r ich in t hr ee f ive Luo and第 3 頁 共 53 頁 用力矩分配法計算圖（ a）所示連續(xù)梁，并畫 M 圖。 ( ) 12．結(jié)點角位移的數(shù) 目就等于結(jié)構(gòu)超靜定的次數(shù)。( ) 4．幾何不變體系是指在荷載作用下，不考慮材料的位移時，結(jié)構(gòu)的形狀和位置都不可能變化的結(jié)構(gòu)體系。 A． 1M 圖和 PM 圖 B． 1M 圖和 1M 圖 C． PM 圖和 PM 圖 D．都不是 9．一個點在平面內(nèi)的自由度有 ( ) 個。 r ecover able r eserves of high qualit y m iner al wat er r esources milon t ons, is t he base of rare natural and polution free mineral wat er . Seen f rom t he advantages of cult ur al enr ichment, wit h Nor thern cult ure, and Xianbei cult ur es, Or oqen cult ure and a number of cult ural r esour ces, r ock only f ound m or e t han 1000 paint ings, cult ural indust ry development has great potent ial. Fr om t he perspective of policy overlap advantage, wit h t he St at e For estr y Administ ration and t he provincial gover nment wo channels of policy t owar ds dir ect enjoyment of natural f orest protection program, Western development , r esource based cit ies sust ainable development and main f unct ion region const ruction nat ional policy planning. As long as we put these r esour ces to use and exploit t he advantages of good, could give guanghui, snow, cold r egion and black Glebe int o gold and silver , wil pr ovide str ong suppor t f or f orest development . ( In addit ion to J ia Shuji m entioned advantages, XX we have in agricult ur e, water conservancy and other unique r esources. Agricult ural r esour ces, m ilon m u of arable land t hroughout he Count y, da hinggan Ling was t he only predom inantly r ural administr ative dist rict s, green planting area of 850, 000 acr es. Wat er r esour ces, in a r iver over more t han 180, many r iver hydr opower developm ent pr oject conditons, r ich in t hree five Luo and 試卷代號： 2348 中央廣播電視大學(xué) 2020— 2020 學(xué)年度第二學(xué)期“開放專科”期末考試 建筑力學(xué) 試題 2020 年 7 月 一 、 單項 選擇題（每小題 3 分，共 計 30 分） 1．若剛體在二個力作用下處于平衡，則此二個力必 ( )。 A．體系幾何不變 B．體系幾何不變且無多余約束 C．體系幾何可變 D．體系幾何瞬變 4．低碳鋼的拉伸過程中，胡克定律在 ( )范圍內(nèi)成立。 r ecover able r eserves of high qualit y m iner al wat er r esources milon t ons , is t he base of rare natural and polution free mineral wat er . Seen f rom t he advantages of cult ur al enr ichment, wit h Nor thern cult ure, and Xianbei cult ur es, Or oqen cult ure and a number of cult ural r esour ces, r ock only f ound m or e t han 1000 paint ings, cult ural indust ry development has great potent ial. Fr om t he perspective of policy overlap advantage, wit h t he St at e For estr y Administ ration and t he provincial gover nment wo channels of policy t owar ds dir ect enjoyment of natural f orest protection program, Western development , r esource based cit ies sust ainable development and main f unct ion region const ruction nat ional policy planning. As long as we put these r esour ces to use and exploit t he advantages of good, could give guanghui, snow, cold r egion and black Glebe int o gold and silver , wil pr ovide str ong suppor t f or f orest development . ( In addit ion to J ia Shuji m entioned advantages, XX we have in agricult ur e, water conservancy and other unique r esources. Agricult ural r esour ces, m ilon m u of arable land t hroughout he Count y, da hinggan Ling was t he only predom inantly r ural administr ative dist rict s, green planting area of 850, 000 acr es. Wat er r esour ces, in a r iver over more t han 180, many r iver hydr opower developm ent pr oject conditons, r ich in t hree five Luo and A． 2 B． 3 C． 4 D． 5 10．力偶可以在它的作用平面內(nèi) ( )，而不改變它對物體的作用。 ( ) 7．軸向拉伸 (壓縮 )的正應(yīng)力大小和軸力的大小成正比，規(guī)定拉為正，壓為負(fù)。 ( ) 15．計算簡圖是指經(jīng)過簡化后可以用于對實際結(jié)構(gòu)進(jìn)行受力分析的圖形。將判斷結(jié)果填入 括弧，以√表示正確，以 表示錯誤） 1．√ 2．√ 3． 4． 5． 6． √ 7． √ 8．√ 9． 10．√ 11． √ 12． 13．√ 14．√ 15．√ 三 、 計算 題（共 40 分） 1．（ 10 分） (1)求支座反力 由 ? ?0AM 得， 08128 ????ByF 即 ? ???? kNFBy 12 由 ? ?0xF 得， ? ??? kNFAx 12 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 an