A:病虫害的生物防治
B:作物轮作、套种
C:使用化肥提高作物产量
D:秸秆等农业废弃物的资源化利用
量一量下面各角的度数,再写出它们的名称.
____ ____
In order to make the policeman believe her, she ________a story.
Kevin and John ____ ____ to go there yesterday.