题干
Nancy's voice was so low that _______ students in our class could hear her.
A：all
B：many
C：few
D：most
答案(点此获取答案解析）
C
Nancy's voice was so low that _______ students in our class could hear her.
A：all
B：many
C：few
D：most
基鱼塘是将低洼稻田挖深作塘，塘内养鱼、塘基上种桑树。因桑养蚕，蚕粪养鱼，鱼粪肥塘，塘泥肥田、肥桑，从而获得稻、鱼、蚕三丰收，这主要是哪一方面的例子？（ ）