【简答题】According to the writer, a more ______ solution to the car problems is to combine mass transportation system with cars of low emission and low fuel consumption.
【简答题】According to paragraph 4, what change is evident in the art of the period following the Upper Paleolithic? T H. E. SU B. J. E. C.TS O F. T H. E. PA. I. N.T I. N. G.S A.R E. M.OSTLY A. N. I. M.A.LS. T ...