单项选择题

A．The lungs.
B．The heart.
C．The circulation.
D．All of the above.
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单项选择题
A．She’d like a ride to the science building.B．She’ll give the man a ride to the library.C．The library is far from the science building.D．It’s a very long walk to the library.
A．She’d like a ride to the science building.
B．She’ll give the man a ride to the library.
C．The library is far from the science building.
D．It’s a very long walk to the library.
单项选择题
A．Dr. Jackson’s.B．The flower shop owner’s.C．The hospital president’s.D．Jackson’s wife’s.
A．Dr. Jackson’s.
B．The flower shop owner’s.
C．The hospital president’s.
D．Jackson’s wife’s.
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