A-A+
A high negative ion count is likely to be foun
问题详情
A high negative ion count is likely to be found _______.
A.near a pond with a water pump
B.close to a slow-flowing river
C.high in some barren mountains
D.by a rotation water sprinkler
参考答案
正确答案:D
解析:推理判断题。第三段第二句谈到负离子多的地方是离水近的地方,比如海边,瀑布和喷泉边,有水花喷溅或有喷雾形成的地方,可以推断水度越快越易产生负离子,所以选D,排除其他答案。