单项选择题

A．which
B．then
C．that
D．therefore
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单项选择题
A．toB．fromC．withD．for
A．to
B．from
C．with
D．for
单项选择题
What is the name of the course the man and woman are discussing
A．Physical chemistry.
B．Life experience.
C．Introduction to Science.
D．Biology.
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