题目内容

They are , unique and irreplaceable.

A. valueless
B. worthless
C. priceless

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Which of the following pairs are synonyms?

A. light, night
B. expand, expend
C. valuable, invaluable
D. push, draw

Which of the following pairs are antonyms?

A. different, indifferent
B. edible, inedible
C. nonmoral, amoral
D. unfortunate, misfortunate

An audiometer is a kind of instrument for measuring the acuity of ____?

A. tasting
B. speaking
C. seeing
D. hearing

Cosmism is the theory of _____.

A. evolution
B. universe
C. astronomy
D. globe

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