The solution to this is free trade in crude oil: some portion of US production should be shipped abroad and replaced with crude of a different grade to make up that optimal mixture.
FORBES: Should The US Allow Crude Oil Exports? Obviously, Clearly, Yes
They express serious concerns about the implications of the decision for future awards and that the committee was being put in a position that was "essentially untenable" in having to recommend that a student in Wales would get a different grade to a student in England despite achieving an identical mark.
BBC: GCSE English regrade 'damaging', Welsh government warned
"If I were to intervene at that stage, it would essentially mean I would say the setting of grade boundaries in Wales will be done on a different basis from the setting of grade boundaries in England, " he said.
There was no way to tell whether the same passing grade from two different reviewers meant they each received the same quality of service.
Examiners will struggle too, to produce a single test that measures the same level of ability in children of different ages. (In music tests all candidates for a given grade play the same pieces: in an English test, quite different reading texts and writing topics would suit an eight-year-old than an 11-year-old.) The changes might even have the perverse effect of making children sit more tests.
Moreover, many classes in the region are multi-grade, grouping children of different levels of education.
Col Edmondson's top civilian deputy, Trevor Dean, took a different job at Dover in a lower pay grade.
Ofqual said grade boundaries did vary between units taken at different times.
Late and dramatic changes to GCSE grade boundaries, which left many pupils with the same mark on different grades, are the subject of a legal challenge by heads, local authorities, pupils and teachers.
But, on appeal, the offence was reduced from Grade C to Grade A after the tribunal viewed a video showing the incident from a different angle to the ones presented at the original hearing on Tuesday.
In third grade, Larry transferred to a Catholic school, where boys and girls wore different uniforms and stood in separate lines before class.
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