单项选择题

Let me give you a ______ of how the computer works.

A．demonstration
B．difference
C．deduction
D．distinction
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单项选择题
As a highly ______ young designer, she has a promising future in her field.
A．original
B．occasional
C．optional
D．obedient
单项选择题
My mother will not allow me to go, ______.
A．my father will either
B．either my father will
C．neither will my father
D．nor my father will
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