碳铵宜作(),不宜作种肥。
A、基肥,追肥
B、基肥
C、追肥
D、叶面肥
参考答案:A
This kind of clothes was very popular _____. [ ]
A. in the 1980s
B. in 1980s
C. in the 1980
D. by the 1980
下列软件中,不属于数据库的软件是()。
A.VisualFropro
B.C#
C.Forbase
D.DBMS