民营手工业不同于官营手工业的表现有( )
①规模小
②产品与老百姓生活关系密切
③价格比较准确地反映市场规律
④与商业联系比较松散
A:①②③
B:①③④
C:②③④
D:①④
—I think listening is just as _______ as speaking in English learning.