Macroevolution refers to the change process of taxa of species and above on a long time scale. This time scale is usually measured in millions of years.
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举一反三
- Macroevolution refers to the change process of taxa of species and above on a long time scale. This time scale is usually measured in millions of years. A: 正确 B: 错误
- Any investigation which covers a long _______ of time is bound to encounter certain special problems. A: rank B: span C: scope D: scale
- When to remove scale from the cooling spaces， acid solution （） in the system can be tested from time to time by putting some on to a piece of lime.
- That was long ago. A very long time ago. Almost 30 years ago.
- Arithmetic operations are appropriate for A: only the ratio scale B: only the interval scale C: the nominal scale D: None of the above answers is correct.
内容
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A scene (in a play) refers to a part of a play during which there is no change in time or place.
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In the process of well testing, every measured pressure and production does not change with time is() A: steady-state well testing B: unsteady test C: Pressure well test D: Constant pressure production well test
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__________ is the grouping of ratings at the positive end of the performance scale instead of spreading them throughout the scale.
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Even so fundamental a dimension (量纲) as time was measured extremely crudely with sand and water clocks hundreds of years ago.
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Appraisal form is a rating scale in which employee’s actual performance is measured against______.