下列（    ）材料属于活性混合材料。

A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: ">石英砂</span>

B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: ">石灰石粉</span>

C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: ">沸石粉</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">&nbsp;</span>

D、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: ">粒化高炉矿渣</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">&nbsp;</span>

E、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: ">块状矿渣</span>