Why does the author mention the Hoover Dam in para...
Câu hỏi: Why does the author mention the Hoover Dam in paragraph one ?
A To give a current example of ocean-based energy technology
B To explain that dams are effective producers of sustainable energy
C To draw a comparison between two sources of renewable energy
D To show that alternative energy sources have not been successful
Câu hỏi trên thuộc đề trắc nghiệm
Đề luyện thi THPT quốc gia môn tiếng Anh năm 2019 - Đề số 3 (có video chữa)