'This park has more than 200 waterfalls that are 15 feet or higher. And 150 of them have never been mapped or photographed,' says park historian Lee Whittlesey. 'Now that's a ______ to the size of YellowstonE.' A.proposition B.hypothesis C.ceremony D.testimony
A.' A.proposition B.hypothesis C.ceremony
【参考答案】
A 解析：proposition建议，主张；hypothesis假设；ceremony仪式；testimony证......