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【单选题】
临床上所说的前尿道是指A.
海绵体部
B.
膜部
C.
前列腺部
D.
尿道球部
E.
以上都不是
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举一反三
【单选题】According to the passage, regular physical exercise can make old people ______.
A.
better able to look after themselves
B.
look younger than they really are
C.
less likely to suffer from diseases
D.
more aggressive in their interaction with others
【单选题】What is the writer's main purpose in the article?
A.
To recommend regular physical exercise.
B.
To describe the dreadful nature of the backache.
C.
To suggest that back problems can be remedied.
D.
To explain the widespread occurrence of back pain.
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