奥苏贝尔根据学习材料和学习者原有知识结构的关系,将学习分为( )
A. 接受学习
B. 发现学习
C. 意义学习
D. 机械学习
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The days are gone_______ smallpox was one of the man’s greatest enemies.
A.which
B.where
C.when
D.who
Oral antibiotics along with good rest_________ very important for patients with pneumonia.
A. was
B. are
C. is
D. were
The patient made a quick_______ from illness.
A.recovery
B.recover
C.record
D.reconstruct
Now,scientistshavenotfoundthecure________AIDS.
A. for
B. to
C. with
D. of