题目内容
如下两个化合物 (a) =N-N=, ( b)-N=N- 的双键的伸缩振动频率高的为 (a)。()
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水为非线性分子, 应有3个振动形式。()
红外光谱图上吸收峰数目有时比计算出的基本振动数目多, 原因是可能存在倍频, 和频和差频吸收峰, 所以可能出现某些附加的弱峰, 使实际吸收峰数目增多。()
1.The Lalu Island is located _______(1)________ and divides the Lake _____(2)_________.2. The_____(3)______ docks and fields surround the Lalu Island in the shape of “Eight Trigrams”.3.The Cihen Pagoda has ___（4）_____ stories and people can enjoy a __(5)____ of the Lake from the top_.4.The Cihen Pagoda was constructed becauseChiang Kai-shek wanted to（6）.5.Walking along the Ita Thao Trail, people can seeflying butterflies,soaring birds, and (7).
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