单项选择题 The growing spending _____ information technology can be taken as evidence that business is getting a payback on its investment.onC、 withD、 of

单项选择题 That _____ productivity paradox now seems to be over.callingB、 so-callingC、 so-calledD、 so called

单项选择题 The answer lies largely _____ the now-pervasive use of information technology throughout the economy.onC、 ofD、 with