Theword“minister”originallymeant“aservant”,butnowhaschangedto“aheadofaministry”.Thisprocessofmeaningchangeiscalled______.
B
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Fromtheviewpointofwordformation,theword“smog”isa______.
Moderneconomics________thecountry’sagriculturalpolicies.
Ifyoutrytolearntoomanythingsatatime,youmayget________.
Amongthefollowingwords,“______”doesNOThaveinflectionalaffixes.