填空题

S1. What is the passage mainly about

【参考答案】

the polygraph test
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单项选择题
A.Memory.B.Two kinds of memory.C.Short-term memory.D.An experiment on students.
A.Memory.
B.Two kinds of memory.
C.Short-term memory.
D.An experiment on students.
单项选择题
A.She asked for $15.B.She donated $50.C.She requested $20.D.She gave $10.
A.She asked for $15.
B.She donated $50.
C.She requested $20.
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