论文部分内容阅读
A W hy,you m ay wonder,should spiders (蜘蛛)be our friends?Because they destroy so m any insects, including som e of the greatest enem ies of the hum an race.Insects would m ake it im possible for us to live in the world;they w ould devour(吞食)all our cr
AW hy,you m ay wonder,should spiders ( spider)be our friends?Because they destroy so m any insects, including som e of the greatest enem ies of the hum an race.Insects would m ake it im possible for us to live In the world;the it w ould devour all our cr