According to paragraph 4, the pigeons moved to the...
Câu hỏi: According to paragraph 4, the pigeons moved to the opposite end of a cage because
A The magnetic field was normal
B The magnetic field was stronger at one end
C The magnetic field changed its polarity
D The magnetic field was removed
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Đề thi thử THPT Quốc Gia môn Tiếng Anh trường THPT Chuyên Phan Bội Châu - Nghệ An - lần 3 năm 2016