The best title for this passage would be ______ . [br] If a sperm whale’s weight

游客2023-09-24  24

问题 The best title for this passage would be ______ . [br] If a sperm whale’s weight is thirty tons, the size of a human will be ______ kilogram.

选项 A、210
B、125
C、100
D、75

答案 B

解析 根据材料中“However, relative to the rest of the body, a sperm whale’s brain is only about 0.02 percent of its body weight, while a human brain is about 2 percent. (然而,相对于身体而言,抹香鲸的大脑占据身体总重量的0.02%,而人类大脑占2%。)”同时,又根据“The sperm whale’s brain is…six times the size of a human brain. (抹香鲸的大脑是人脑的六倍。)”这样如果抹香鲸重30吨,其大脑=30xO.02%=0.15(吨),等于人脑的六倍,所以人脑重量=0.15÷6=0.025(吨),人的身体=人脑重量÷2%=0.025÷2%=0.0125(吨)=125(公斤)。B项正确。
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