成都平原的粮食作物以______为主,农作物的熟制是______.
成都平原位于南方地区主要粮食作物为水稻,农作物熟制是一年两熟到三熟.
故答案为:水稻;一年两熟到三熟.
Studies show that the things that contribute most to a sense of happiness can not be bought, ______ a good family life, friendship and work satisfaction.
A.as for
B.in view of
C.in case of
D.such as
住宅小区内的线缆应采取哪种敷设方式。()
A.暗敷
B.地下管道敷设
C.架空桥架
D.静电地板