膨润土进行活性处理的目的是（）
A.降低收缩膨胀性
B.提高耐火度
C.使Na膨润土化为Ca膨润土
D.使Ca膨润土转化为Na膨润土
参考答案：D
公民行使监督权，就要勇于采用张贴大字报等方式予以揭露。[ ]
We firmly believe that war never settles anything. It only ____violence.
A． runs into
B．comes from
C．leads to
D．results from
