Thewealthofacountryshouldbemeasured________thehealthandhappinessofitspeopleaswellasthematerialgoodsitcanproduce.
A、inlinewithAftersomanydayswithoutrain,thegroundquickly________thelittlerainthatfelllastnight.
Wemust______thattheexperimentiscontrolledasrigidlyaspossible.
________tothepapersisrestrictedtoDefenseDepartmentpersonnelonly.
Asyoulikepopmusic,__________Ilikeliterature.
Itisusefultoscience_______theearthasanobjectinspace.
