下列文章是毛 * * 在抗日战争时期所发表的是
①《新民主主义论》
②《中国社会各阶级的分析》
③《论人民民主专政》
④《论联合政府》
A.①②
B.①④
C.②③
D.②④
答案:B
排顺序。
( ) Me.
( ) It's May 12th. What about you?
( ) Who has a birthday in May?
( ) What's the date?
( ) My birthday is June 4th.
地形坡度等于20%时,等高线间距为:()
A.10m
B.20m
C.30m
D.40m