Trắc nghiệm: The (A) principles used in air – conditioning are (B) basically the same as (C) those used by the human body to cool (D) himself. | Gửi trắc nghiệm |
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Trắc nghiệm: The (A) principles used in air – conditioning are (B) basically the same as (C) those used by the human body to cool (D) himself. | Gửi trắc nghiệm |