developing发展中
developed发达
China is a（ ）country while the U.S is a（ ）country.
China is a（ ）country while the U.S is a（ ）country.
A.developed…developed
B.developing … developing
C.developed…developing
D.developing … developed
A.developed…developed
B.developing … developing
C.developed…developing
D.developing … developed
英语人气：735 ℃时间：2019-10-17 03:22:45
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