SCIENTISTS AND ENGINEERS HAVE INVENTED DEVICES TO REMOVE FROM...

Question

Câu 46: Scientists and engineers have invented devices to remove        from industrial wastes.A. pulluting B. pollutants C. pollutions D. pollute

Accepted Answer

1 A 11 B 21 A 31 C 41 C 2 B 12 D 22 C 32 B 42 C 3 C 13 C 23 D 33 C 43 D 4 A 14 B 24 D 34 D 44 D 5 B 15 D 25 C 35 A 45 D 6 B 16 B 26 C 36 C 46 B 7 B 17 B 27 D 37 A 47 A 8 B 18 D 28 A 38 B 48 B 9 C 19 A 29 D 39 B 49 D 10 A 20 A 30 C 40 A 50 A ----------- HẾT ---------

SCIENTISTS AND ENGINEERS HAVE INVENTED DEVICES TO REMOVE FROM...

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