水泥砂浆屋面找平层应留设分格缝，分格缝间距为（    ）

A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">纵横向均为</span><span style="FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;; FONT-SIZE: 14px">4m&nbsp;&nbsp;</span>

B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">纵向</span><span style="FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;; FONT-SIZE: 14px">6m</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">，横向</span><span style="FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;; FONT-SIZE: 14px">4m</span>

C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">纵横向均为</span><span style="FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;; FONT-SIZE: 14px">6m </span>

D、<span style="FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;; FONT-SIZE: 14px">&nbsp;</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">纵向</span><span style="FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;; FONT-SIZE: 14px">4m</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">，横向</span><span style="FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;; FONT-SIZE: 14px">6m</span>