填空题：When__________aboutsubstances,thescientistsfinditconvenientt

题目内容：

When__________aboutsubstances,thescientistsfinditconvenienttoclassifythemintosolid,liquidandgas．(think)

参考答案：

答案解析：

Maybeeachcomputershouldcomewiththewarning:forallthehelpthisc

Maybeeachcomputershouldcomewiththewarning:forallthehelpthiscomputermayprovide,i

分类：成人英语三级题型：填空题

I'mafraidwehavetocallthewholedealoffifyoustill__________youroriginalquotation.

分类：成人英语三级题型：填空题

Thispassagemighthavebeentakenoutofabookdealingwith__________. A．physics B．chemi

分类：成人英语三级题型：填空题

RayBirdwhistellcantellwhatregionoftheUnitedStatesapersonisfromby__________. A．h

分类：成人英语三级题型：填空题

Whichofthefollowing'conclusionsisnotsupportedbythepassage? A．VitaminEdeficiency

分类：成人英语三级题型：填空题