A-A+
Since the middle of this century ______ has be
问题详情
Since the middle of this century ______ has been learned about space than in all human history before that time.
A．much
B．more
C．better
D．a lot请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：分析句子后发现句中有than说明这是一个比较级的句子。题干中缺少主语，虽然better是比较级形式，但它是形容词，不能作主语。more是much的比较级，可以作主语。所以本题的正确答案为B。
