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………, A BAT SENDS OUT A SERIES OF SIGNALS, WHICH BO...
………, A BAT SENDS OUT A SERIES OF SIGNALS, WHICH BOUNCE OFF ANY OBJ...
65 CAU TRAC NGHIEM TIENG ANH 12 P3 9781
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Đáp án tham khảo
52. ………, a bat sends out a series of signals, which bounce off any object
in its path.
A. When in flying
B. While it is flying
C. when they are flying
D. Once flying
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65 CAU TRAC NGHIEM TIENG ANH 12 P3 9781