#职称英语综合类阅读理解练习题5(3) 搜索结果
Thisprocessofeliminationseemstoleaveveryfewplasonwhichearthlikelifemightbefound.However,eveniflifecouldexistononlyoneplainamillion,therearesomanybillionsofplasthatthiswouldstillleaveavastnumberonwhich