单项选择题


Passage Three
Questions 33 to 35 are based on the passage you have just heard.

A．Two.
B．Three.
C．Four.
D．Five.
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self-conscious
单项选择题
A．Many students try to study the whole night before an exam.B．Sleep may improve memory.C．Exams may harm memory.D．Sleep can improve listening ability.
A．Many students try to study the whole night before an exam.
B．Sleep may improve memory.
C．Exams may harm memory.
D．Sleep can improve listening ability.
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