2019年一级建造师考试真题答案：《通信与广电》(完整版)

2019()1.P2A.B.C.D.D07-2P99A.B.C.D.D07-3P81ABCDD4VASTP32ABC.D.D5-P45A.B.C.D.B6P54ABCDA7()P65ABCDUPSD06-.ABCA.B.C.D.E.DC/DCUPS8()P67ABCDE.B10-()ABCDBP6791550nmP72A.G.652B.G.653C.G.654D.G.655BG.652G.6531550nmWDMG.6541550nmG.655DWDM10P3ABCDB11SDHP20B12OUT()P24AOTUBOUTCOUTDOACOUTOUTWDM13P415ABCDB14P110ABCDB15ABCDB16()P150ABCDB06-A.B.C.D.17P170ABCDB18()P178ABCDC10-()ABCDAP17810-()ABCDEABDEP179(1)(2)(3)19()ABCDC10P367();();();()C06-A.B.C.D.E.2030P117A110B210C310D410C21A22ABCDEAB23P182ABCDBD24()ABCDEACD1013P37025P386ABCDABCD26P129(07)A.B.C.D.E.ABCD27P374ABCDEABDE28OTDR()P144ABCPMDDABCD29P17ABCDABC30P422A110kvBCDEABC2011.5%1.5%1.5%21.2.3.4.3121.2.3.41409143-153-4520A1A123234?114-15123201qnq1=120200/2=1.2q2=120*200/2+105000/4=1.2+1.25=2.45q3=105000/4+105000/4=2.5q3=105000/4+105000/4=2.52BCWSBCWPACWPBCWSBCWPACWPBCWS=10*5000/4+10*5000/4=2.5BCWP=6*5000=3ACWP=2.8BCWS=1.2+2.45+2.5=6.15BCWP=96*200+6*5000+2.5*5000=6.17ACWP=2.8+2.2+1.25=6.253SPICPISPICPISPI=BCWP/BCWS=3/2.5=1.2CPI=BCWP/ACWP=3/2.8=1.071SPI=BCWP/BCWS=6.17/6.15=1.003CPI=BCWP/ACWP=6.17/6.25=0.9874CVSVP103SV=BCWP-BCWS=3-2.5=0.50CV=BCWP-ACWP=3-2.8=0.20BCWPACWPBCWSSV0CV0SV=BCWP/BCWS=6.17-6.15=0.02CV=BCWP/ACWP=6.17-6.25=-0.08ACWPBCWPBCWSSV0CV051300mm,800mm.300mm800mm.250mm,20mm500mm30mm280mm,10mm80mm20200mm31301.2