对线路测量数据而言,在给定的气象条件下,每次测量数据,应由沿线近似等分布的三个地点的测量值组成。
参考答案:对
已知an=2n+3n,bn=an+1+kan,若{bn}是等比数列,则k=______.
Activities that are related and shown as a single, aggregate activity reported at a summary level are called ______ .
A.master schedule
B.hammock
C.WBS
D.hanger