多选题 Because they make up just a small percent of all objects that fall to Earth, carbonaceous meteorites are considered ______.
【正确答案】 C、F
【答案解析】[解析] ● Because说明前后同义重复。
● 空格与small percent of(很小的比例)同义重复。
● wanting缺乏的/不足的,large大的,rare罕见的,dense浓密的,nonexistent不存在的,scarce罕见的。答案选CF。