第1个回答 2014-01-07
T=(1+3+2+6-1)*2=22天
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
------ ------- ------- ------- -------- ----------
---------------------- -----------------------------
------------------------ -----------------------------
------------------------- --------------------------------
--------------------- ---------------- -------------------------
--------------------- ----------------- ------------------------