問題詳情
Technology has come a long way 14 the time of Thomas Edison, inventor of the electric light bulb, the electric motor andthe phonograph, 15 other things. Edison was also the main 16 for the first commercial central power system in NewYork City. Today, nearly a century after Edison’s most 17 period of invention, with the 18 of the Computer Age, manyof the functions that Edison brought to life 19 into 20 mobile communication devices.
【題組】14.
(A) before
(B) since
(C) because of
(D) with respect to
參考答案