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. THE ECOLOGIST RESEARCH THE _____________OF USING...
. THE ECOLOGIST RESEARCH THE _____________OF USING THE NATURAL RESOU...
KIEM TRA 1 TIET TIENG ANH 11
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Đáp án tham khảo
2/. The ecologist research the _____________of using the natural resources for our lives.
A. pollution B. preservation C. variety D. importance
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KIEM TRA 1 TIET TIENG ANH 11