试题与答案

测量工具的稳定性以及重复性和精确性称为() A.信度 B.效度 C.灵敏度 D.标准

题型:单项选择题 B1型题

题目:

测量工具的稳定性以及重复性和精确性称为()

A.信度

B.效度

C.灵敏度

D.标准化

E.特异性

答案:

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参考答案:A

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题型:阅读理解

     Their round bodies, round flat noses and large ears often remind us of bears every time we see koalas. Probably that's why these animals are often referred to as koala bears. Koalas are natives of Australia.

However, they aren't found all over the continent. The habitat of koala bears  is eastern regions of

Australia and South Australia.    

     Koalas are found where there are enough forests of eucalyptus(桉树) trees. The association of koalas and eucalyptus trees is due to the fact that these animals feed on the leaves of eucalyptus trees. But that's

not all. In addition, the trees also serve as the homes of the koalas.    

     Koalas grow around 27 to 36 inches tall and weigh 5 to 9 kilograms on average. Male kaolas are

larger than the females. Life can stretch up to 17 years.     

     Like many other animals, the habitat of koala bears is fast decreasing due to deforestation and quick

urbanization(都市化). However, efforts by some scientists and animal lovers have successfully introduced these creatures back in certain parts of Australia.

1. What do Koalas look like ?   (回答词数不超过3个)

                                                                                       

2. Where is the main habitat of koala bears in the world?  (回答词数不超过8个)

                                                                                                 

3. What do eucalyptus trees provide koalas with ?  (回答词数不超过3个)

                                                                                      

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