【简答题】In part two (para.3-6), the author gives differences between the mass media and the 1.e…….. media. as Chomsy states that the major function of mass media is to direct or 2.d……. mass audience. while th...
【单选题】Many features similar to those aeronautical innovations developed by man can be observed amongst birds, insects and plants. At times, observations of these natural phenomena have inspired man to imita...
A.
more advanced products were used in airplanes
B.
more research was devoted to studying bird flight
C.
greater efforts were directed towards shape designs of aircraft wings
【单选题】Successful innovations have driven many older technologies to extinction and have resulted in higher productivity, greater consumption of energy, increased demand for raw materials, accelerated flow o...
【单选题】听力原文: Many of the innovations in fire fighting that we will be seeing today were developed right here in America. As you can see from these photos, one of the earliest steam powered fire engines, the ...