单项选择题

Doctors sometimes ______old cures when modem medicine doesn’’t work.

A．fall on
B．fall down on
C．fall back on
D．fall in upon
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单项选择题
What was the primary consideration in the Florida judge’’s ruling
A．The biological link.
B．The child’’s benefits.
C．The traditional practice.
D．The parents’’ feelings.
单项选择题
Some educator try to put students of similar abilities into the same class because they believe this kind of ______ grouping is advisable.
A．homogeneous
B．instantaneous
C．spontaneous
D．anonymous
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