单项选择题

Cement was seldom used in building during the Middle Ages.

A．crudely
B．rarely
C．originally
D．symbolically
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单项选择题
Her behavior is extremely childish.
A．simple
B．immature
C．beautiful
D．foolish
单项选择题
The poet William Carlos Williams was a New Jersey physician.
A．doctor
B．professor
C．physicist
D．resident
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