单项选择题

For Questions 11～20, you will hear two passages. Before listening to each one, read the questions related to it. While listening, answer each question by choosing A, B, C, or D. You will hear each piece ONLY ONCE.
Which is true about the Virgin Earth Challenge program

A. It is cofunded by Richard Branson and A1 Gore.
B. The winner will win twenty-five million dollars once the technology is developed.
C. The winner will not get any money until the technology had worked successfully for ten years.
D. The winner must develop a plan to remove industrial gases from the atmosphere without causing harm.

For Questions 11～20, you will hear two passages. Before listening to each one, read the questions related to it. While listening, answer each question by choosing A, B, C, or D. You will hear each piece ONLY ONCE. Which is true about the Virgin Earth Challenge program

For Questions 11～20, you will hear two passages. Before listening to each one, read the questions related to it. While listening, answer each question by choosing A, B, C, or D. You will hear each piece ONLY ONCE.
Which is true about the Virgin Earth Challenge program