• 2022-05-31
    49()
    A: field
    B: area
    C: zone
    D: district
  • A

    内容

    • 0

      Which of the following is not included in the functional area of Yellowstone national park? A: original nature reserve B: special nature reserve C: park development zone D: park use area

    • 1

      From the perspective of the fluid leakoff mechanism of fracturing fluid, which kind of fluid leakoff coefficient mainly controls the effect of fracturing fluid's wall-forming property( )。 A: Reservoir fluid compression zone B: Fracturing fluid invasion zone C: Filter cake area D: Wellbore area

    • 2

      Plastics<br/>today contribute to a wide ______ of industries. A: field B: area C: scope D: range

    • 3

      In spleen, the thymus-dependent area is A: splenic cord B: splenic corpuscle C: periarterial lymphatic sheath D: splenic sinus E: marginal zone

    • 4

      Which district is the youngest?‍‍‍ A: District 2 B: District 3 C: District 4 D: District 5