在温带森林食物网中,有“果实→鼠→鼬→狼”食物链,为避免鼠灾,应采取的最好措施是:()
——Whoknockedatthedoor?
——I’venoidea.Ijustpretendednobodywasathome,soIdidn'taskwho_____was.
Youhavemadeafewmistakesinyourcompositionbutyouhavedonewell.
——What’sthematterwithyou?
——thewindow,myfingerwascutunexpectedly.