题目
题型:填空题难度:一般来源:不详
答案
则由 46=40+31-x,解得 x=25,
故答案为 25.
核心考点
举一反三
A.{2,3,4,5,6,7} | B.{3,5} |
C.{3,4,5,6} | D.{2,3,5,7,} |
A.[0,1) | B.(0,1) | C.[0,1] | D.(-1,0] |
A.14 | B.11 | C.7 | D.2 |
A.{2,3,4,5,6,7} | B.{3,5} |
C.{3,4,5,6} | D.{2,3,5,7,} |
A.[0,1) | B.(0,1) | C.[0,1] | D.(-1,0] |
A.14 | B.11 | C.7 | D.2 |