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【单选题】
下列属于皇家园林的是()A.
北京恭王府
B.
上海豫园
C.
绍兴沈园
D.
北海公园
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【简答题】A．Because it is 22 miles. B．Because the planes turn sharply. C．Because of driving conditions. D．Because there are no signs.
【简答题】A．The speaker is unprepared for the new post. B．The speaker is unclear about the conditions there. C．The speaker is ready for all the difficulties there. D．The speaker is eager to know more about the ...
【多选题】Which of the following statements about biodiversity are correct?
A.
Biodiversity is an important concept in ecology and evolution because genetic & phenotypic diversity are essential conditions for the occurrence of natural selection.
B.
Diversity gives species the ability to change over time in response to environmental conditions.
C.
Species that lack diversity may become extinct when the environment changes.
D.
Lack of diversity between and among species in the ecosystem can also impact the ability of the ecosystem to adapt to changing environmental conditions and stresses, such as changing weather patterns, invasive species, and pollution.
【简答题】B At 3,500 metres, La Paz, Bolivia, is the highest capital in the world．Many roads are in bad condition and accidents are frequent．One road in particular, is considered the most erous in the world...
【简答题】世界上第一个兴趣测验量表是
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