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Q: What did Irina Bokowa, the Director-general of UNESCO say about women scientists?A: The world needs science, while science needs ___________________. It's impossible to make any progress for ____________________ if one sets aside the other half's ______________, _____________, and ____________.

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Q: What are Xie Yi's contributions to science?A: She is part of a team who created a new ______________________ that can be used to convert ____________ or ____________ into electricity. Her work contributes to __________________ pollution and _______________ energy efficiency.

Q: Who selected this year's (2015) five laureates?A: An independent international __________ made up of 12 _____________ scientists and researchers.

系统受力图中的内力可不画,但是该对内力对于单体受力图必须要画,且反向、共线的关系必须体现出来

A. 对
B. 错

画单体受力图和系统受力图时,不同的受力图中同一个力所画的形式必须一样

A. 对
B. 错

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