If ~$m$~ is an even integer, ~$v $~ is an odd integer, and ~$m$~ >~$v $~>0, which of the following represents the number of even integer less than m and greater than ~$v $~?
~$\frac{m-v}{2}-1$~
~$\frac{m-v-1}{2}$~
~$\frac{m-v}{2}$~
~$m-v-1 $~
~$m $~-~$v $~
题目问的是满足n的偶数有几个!!!
不是问的具体是哪个,而是问有几个这样的偶数是满足的。
同认为答案是D
为什么答案选B呢?因为题目要求答案需要是偶整数,所以排除ACE,但B和D中应该是选择D吧?