1.InCarson’sopinion,whatledtotheinsectproblem?
2.Whatisthedifferencebetweenthenaturalspreadingofspeciesandtheman-assistedprocess?Andhowdoesthisprocesscontributetothepestproblem?
1.Whatshouldwedotosolvepestproblems?
在相对布局文件中,把控件与另外一个控件的下边使用的属性是()
A. layout_above
B. padding
C. layout_below
D. layout_margin