问题
选择题
The closer the blood relationship between two people, the closer they are in intelligence. If we take two unrelated people _____, their degree of intelligence might be completely different.
A．at ease
B．at random
C．in the flesh
D．in many ways
答案
B
题目分析：考查介词短语。At ease自由自在；at randon任意的；in the flesh本人；in many ways在许多方面。句意：两个人的血缘关系越近，他们的智力越接近。如果我们随机采取两个毫无相关的人，他们的智力程度完全不同。根据上文提到The closer the blood relationship between two people, the closer they are in intelligence 可知这是没有关系的，所以是任意的，故选B项。
考点 : 考查介词短语