Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions:

Biogas can be utilized for electricity production, cooking, space heating, water heating and process heating.

Suy nghĩ và trả lời câu hỏi trước khi xem đáp án

ADSENSE
ADMICRO
YOMEDIA
ZUNIA9