我国实行对外开放的根本目的是( )
A:学习外国先进的经验和管理办法
B:引进外资,加快发展步伐
C:扩大对外贸易,发展外向型经济
D:进一步发展社会主义生产力
—Did you have fun _____________ on your last day off?
—No, I didn't. there were too many people and it was really crowded.
函数y=lg(x+1)的图象大致是( )
下列词语中没有错别字的一项是( )