用图解法求解空间问题习题答案Stillwatersrundeep.流静水深流静水深,人静心深人静心深Wherethereislife,thereishope。有生命必有希望。有生命必有希望15-2XOmmnnll15-3XOabcabcmm15-4XOefefmmnnllaabbccdd15-5XOaabb15-6XOababcdcdefefy1y1y2y2y3y315-7XOababmdcncndmsskk15-8XOHV1abcabcH2c2b2a215-9XOPvceddecVH1c1e1d1V215-10XOaal1l1l3l2l2l315-11XOababa1a1 实长15-12XOHV1X1aba300a1b1b实长15-13XOabcdbcHV1X1b1 c1450a1d1ad45015-14XOababkkX1X2实长15-15XOabcdabcdX1X2实长15-16XOabcdcdX1aX2a1a2c1d1c2d2b1b2b15-17XOabcabcddX1d1距离15-18XObacbcaX1X215-19XOcabcabdX1X2600a1b1c2b2d2d1c1da215-20XOabdabcd1c1a1b1X115-21XOabab实长b1b115-22XOaba450bb115-23XOabcabca1b1dd1d1b1a1c1d2b2c1b2d15-24XOabcacbkk300X1X2k1k2e2e1eeVH1H1V215-25XOabcdabcdoookkPvk1k115-26XObacbackb1a1a11212k1k1k2k11k1215-27XOklmnklmnk1l1m1n1k1l1m1n1m2n2l2k2m2n2k2l2距离15-28XOklklmnmnn1l1距离15-29XOklmnklmn qqm1rrl115-30XOabababcc15-31XOacbabcdedebH cHaHdHeH15-32XOMCBAabmabmcc15-32XOMCBAabmabmccX1HV1b1m1a1X2H2V1b2a2m2c2c115-32XOMCBAabmabmcceeb1c1c15-33XObdefbdef15-33XObdefbdefX1HV1b1d1e1f1a1aa