问题补充：
We should eat fruit and vegetables, but meat. It is good for our health.
A. more; less
B. more; more
C. less; more
D. less; less
答案：
(答案→)A. more; less
B. more; more
C. less; more
D. less; less
解析：more 更多的，其后跟可数名词复数或不可数名词。less更少的，其后跟不可数名词。句意：我们应该吃更多的蔬菜，水果，吃更少的肉。这对我们的健康有意。吃更多的水果蔬菜少吃肉才对健康有意。故选A.
