____isknowntoall,Chinaisadevelopingcountry_____AmericaisdevelopedcountryA.As;whileB.It;whileCThat;whenD.It;but
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题目内容：
____is known to all ,China is a developing country _____America is developed country
A.As ;while
B.It;while
C That ;when
D.It ;but
优质解答
A.As ;while
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