单项选择题

All substances, ______, liquid or solid, are made up of atoms.

A. be they gases
B. whether they are gases
C. they are gases
D. they can be gases
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It was during summer breaks that we first taste the satisfaction that work ______ into hard currency.
A. translates
B. transfers
C. transplants
D. transmits
单项选择题
It is a well-known fact that the cat family ______ lions and tigers.
A. enriches
B. accommodates
C. adopts
D. embraces
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