Answer:
False.
Step-by-step explanation:
A linguist is a person who specializes in the study of human speech, including nature, units, structure, and modification of language.
The linguistics is the study of human language, it´s analyzed through observing an interplay between sound and language.
It is not necessary for the linguists to be bilingual or multilingual but it would make their work easier if they were.
I hope this answer helps you.