TORTUOUS:

A． refuting a belief held by one school of linguistics
B． reviewing an interesting feature of language
C． illustrating the confusion that can result from the improper use of language
D． suggesting a way in which languages can be made more nearly perfect
E． surveying new interesting areas of research in the field of linguistics

A． exorbitance : moderate
B． perjury : ardent
C． affection : faithful
D． precision : accurate
E． loathing : comely