下面属于人类与环境统一的生产活动是()
正常情况下,下列四个图若改变自变量或因变量,则曲线变化最大的是()
()1.Couldyouhelpme,please?A.OK.
()2.Thanksalot.B.You'rewelcome.
()3.Let'sputthebooksinthebox.C.It'sMonday.
()4.Canyoucarryit?D.No,it'sfull.
()5.Who'sondutytoday?E.lam.
()6.Isitempty?F.No,it'slight.
()7.Whatdayisittoday?G.Certainly.
()8.Isthatbagheavy?H.No.LiLeiisn'there..
()9.Areweallheretoday?I.No,thanks.
()10.Letmehelpyou.J.Yes,Ican.