2. 财务会计
  3. M点高程HM = 43. 251m，测得后视读数a=1. 000m，前视读数b=

M点高程HM = 43. 251m，测得后视读数a=1. 000m，前视读数b=

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问题 M点高程HM = 43. 251m，测得后视读数a=1. 000m，前视读数b=2. 283m。则N点对M点的高差hMN和待求点N的高程HN分别为：A. 1. 283m ,44. 534m B. -3. 283m,39. 968mC. 3. 283m ,46. 534m D. -1. 283m,41. 968m
选项
答案D
解析提示：HB=HA+hAB=HA+(a-b)
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