Human‘s brains are larger in pro

Human‘s brains are larger in proportion to their bodies than _______.
A、whales
B、a whale
C、that of whales
D、those of whales
【正确答案】：D
【题目解析】：1人大脑brains与鲸的大脑brains之间的对比,所以,A.whales 和B.a whale 排除.
2.为了避免重复,鲸的大脑brains用复数代词those替代.that 代替单数或不可数名词.