Helen Keller, blind and deaf from an early age, developed her sense of smell so finely that she could identify friends by their personal odors.
Giải chi tiết:
Đáp án là D. identify = recognize: xác nhận, nhận ra
Các từ còn lại: classify: phân loại; communicate with: giao tiếp với; describe: miêu tả
Biogas can be utilized for electricity production, cooking, space heating, water heating and process heating.
Population growth rates vary among regions and even among countries within the same region.