• 2022-05-31
    School of Petroleum Engineering had cultivated highly qualified inter-disciplinary talents for society and _____ research _____ technology.A. made ... in high B. conduct ... on cutting-edgeC. done ... by digital
    A: made ... in high
    B: conduct ... on cutting-edge
    C: done ... by digital
  • B

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      It’s high time ______ about the traffic problem. A: something was done B: everything is done C: anything will be done D: nothing to be done

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      It’s high time _____ about the traffic problem. A: anything will be done B: something was done C: nothing be done D: something is done

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      ______I had done it, I knew I had made a mistake. A: Direct B: Directly C: Moment D: Constant

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      It ’ s high time we _____cutting down the rain forests.

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      Cutting edge inclination angle is the angle included between major cutting edge and________. A: cutting edge plane B: reference plane C: major motion direction D: feed direction