未知题型 The biggest computer company in Silicon Valley has laid off hundreds of people during the last few years.A.declinedB.detachedC.dismissedD.dispersed

未知题型 Fictory and accompanying prosperity muted memories of the Great Depression and made him a national hero.A.transpireB.upbraidC.muffleD.twist

未知题型 This book is essential to anyone interested in space exploration.A.dispensableB.indisputableC.indispensableD.disputable