【简答题】(Passage 2, Lines 1-3, Para. 3) Them we fed them four unidentified samples of cola on at a time, regular colas for the one group, diet versions for the other.
【简答题】Questions 15 to 17 are based on the following passage. At the end o f the passage, you will be given 15 seconds to answer the questions. Now, listen. to the passage. In 1847 most countries of the worl...
【简答题】Questions 17 to 20 are based on the following passage. At the end o f the passage, you will be given 20 seconds to answer the questions. Now,, listen to the passage. By what means did Joe think he cou...