——What did Mr.Black do in the middle of the night?
——Well,I’m not sure,but he was ohen heard__________.
A.singing the same song B.to sing the same song C.sing a same song D.to be playing same song
参考答案:
答案解析:
实践作为检验真理的标准,既是确定的,又是不确定的,其不确定性是因为:
实践作为检验真理的标准,既是确定的,又是不确定的,其不确定性是因为:A.实践主体的素质的差异 B.实践的形式是多种多样的 C.社会实践总要受到历史条件的限制 D