: According to the passage, which of the following is one of the goals of the new technology in coal-fired plants? A. To adapt the plants to other kinds of fuel B. To reduce the cost of bui

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According to the passage, which of the following is one of the goals of the new technology in coal-fired plants?

To adapt the plants to other kinds of fuel

To reduce the cost of building more plants

To lengthen the lives of plants already in use

To make the plants already in use more productive

Giải thích

Đáp án D

Dựa vào câu “Whereas some of these changes are evolutionary and are intended mainly to increase the productivity of existing plants…” → một trong những mục tiêu của công nghệ mới trong các nhà máy than đốt là làm cho những nhà máy đang tồn tại trở nên năng suất hơn → chọn D