单项选择题


Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
What do the scientists think about the multilin-gual phenomenon

A.It is the revolution of the brain’s memory.
B.It is the challenge for the brain’s capacity.
C.It is the activator of the brain’s evolution.
D.It is the revelation of the brain’s genius.