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【简答题】
解释下列现象： (1)配合物[Cu(en)2]2+比[Cu(NH3)4]2+稳定，但[Ag(en)]+却不如[Ag(NH3)2]+稳定。 (2)一般过渡金属物有色，但Mn2+，Fe3+的离子颜色很浅。 (3)钴的反磁性配合物如[Co(en)3]3+和[Co(NO2)6]3-呈橙黄色，而顺磁性配合物如[CoF6]3-和CoF3 (H2O)3呈蓝色。
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【多选题】下列关于发票的检查的表述中,正确的有( )。
A.
税务机关可以检查发票的保管及缴销情况
B.
税务机关可以向各方询问与发票有关的问题
C.
税务机关可以将已开具的发票调出查验，并需要开具收据
D.
税务机关可以在查处发票案件时，对相关资料进行复制
【单选题】选择最佳译文: 原文:中国有 12 亿多人口,陆地自然资源人均占有量低于世界平均水平。
A.
China has a population of more than 1.2 billion, and its land natural resources per capita are lower than the world's average.
B.
China's population is 1.2 billion and the natural resources on the land per head are lower than the world's average level.
C.
The 1.2 billion people in China have lower land natural resources than in the world each.
D.
The land natural resources 1.2 billion Chinese have are less than the world has.
【单选题】中国有12亿多人口，陆地自然资源人均占有量低于世界平均水平。______
A.
China has a population of more than 12 million, and its land natural \r\nresources that everyone own are lower than the world’s average.
B.
China has a population of more than 1.2 billion, and its land natural \r\nresources that everyone own are lower than the world’s average level.
C.
There are more than 12 billion people in China, and its land natural \r\nresources per capita are lower than the world’s average level.
D.
China has a population of more than 1.2 billion, and its land natural \r\nresources per capita are lower than the world’s average.
【简答题】达到天人合一的途径是：
【单选题】中国有 12 亿多人口,陆地自然资源人均占有量低于世界平均水平。
A.
China has a population of more than 1.2 billion, and its land natural resources per capita are lower than the world’s average.
B.
China’s population is 1.2 billion and the natural resources on the land per head are lower than the world’s average level.
C.
The 1.2 billion people in China have lower land natural resources than in the world each.
D.
The land natural resources 1.2 billion Chinese have are less than the world has.
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