• 2021-04-14
    Workers are constructing
  • 内容

    • 0

      The less expensive option of constructing special tracks for high-speed train is utilizing _____________ .

    • 1

      Civil Engineering is not only about designing and constructing, but also about ________the infrastructure. A:

    • 2

      The first step in constructing a landfill is to build roads which lead to the landfill____。

    • 3

      In factories, workers are mostly male while female workers are __.

    • 4

      It is implied in the passage that in the past______. A: blue-collar workers worked harder than white-collar, workers B: white-collar workers had little difficulty getting good jobs C: there were more white-collar workers than blue-collar workers D: colleges and graduate schools trained more skilled workers than now