题目内容


I want to ________ the secrets of nature and apply them for the happiness of man.
A．bring inB．bring outC．bring upD．bring about
B
短语辨析。  A. 引进；生产   B.出版；生产    C. 提出；教育   D. 引起；使掉头.句意：我想引进大自然的奥秘，把他们应用于人类的幸福上。故选A。
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