Questions 11 to 18 are based on the conversation you have just heard.
A. They missed the concert because of the rain.
B. They are soaked in the rain on their way to the concert.
C. They will dry off their clothes immediately before the concert starts.
D. They will change their clothes a few minutes before the performance starts.
查看答案
参与氨基酸脱羧基作用
A. 维生素及
B. 维生素B12
C. 维生素B12
D. 四氢叶酸
E. 生物素
Questions 11 to 18 are based on the conversation you have just heard.
A. People take longer to learn maths.
B. People take shorter to learn maths.
C. People find maths easier as they grow older.
D. People find maths more difficult as they grow older.
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