10.??Chemicals are released into the air. As a result, the atmosphere becomes thicker and ___ more of the Sun's heat.
A. retains
B. restrains
C. remains
D. regains
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10.??Chemicals are released into the air. As a result, the atmosphere becomes thicker and ___ more of the Sun's heat.
A. retains
B. restrains
C. remains
D. regains
(责任编辑:admin) |