2008年北京奧運會主體育場的外形好似“鳥巢”(The Bird Nest),有一類物質(zhì)也好似鳥巢,如化學(xué)式是B5H9的五硼烷(如圖).下列有關(guān)五硼烷的說法錯誤的是( )
A.五硼烷由5個硼原子和9個氫原子構(gòu)成
B.五硼烷的相對分子質(zhì)量是64
C.五硼烷中硼元素和氫元素的質(zhì)量比為5:9
D.五硼烷屬于化合物
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科目:初中英語 來源:2012屆山東省寧津縣實驗中學(xué)初三上學(xué)期期中考試英語試卷(帶解析) 題型:閱讀理解

It is said that people born on different dates have different characteristics. For example, people who were born between March 21 and April 20 are likely to be active and strong. They like power and enjoy adventures.
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