单项选择题


Conversation 2

A．A trading company and a trust company.
B．A trading company.
C．A trust company.
D．A visiting delegation.
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单项选择题
A．Operating computers.B．Doing business.C．Operating fax machines.D．Typing.
A．Operating computers.
B．Doing business.
C．Operating fax machines.
D．Typing.
单项选择题
A．15.B．10.C．5.D．2.
A．15.
B．10.
C．5.
D．2.
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