单项选择题

Only when your identity has been checked,______.

A．you are allowed in
B．you will be allowed in
C．will you allow in
D．will you be allowed in
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单项选择题
Charles Babbage is generally considered ______the first computer.
A．to have invented
B．inventing
C．to invent
D．having invented
单项选择题
It is the ability to do the job______ matters not where you come from or what you are.
A．one
B．that
C．what
D．it
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