考研英语每日一题解析Day127

This group generally do well in IQ test, scoring 12-15 points above the (10)value of 100, and have contributed disproportionately to the intellectual and cultural life of the West, as the careers of their elites, including several world-renowned scientists,(11) . They also suffer more often than most people from a number of nasty genetic diseases, such as breast cancer. 

10.[A] normal [B] common [C] mean [D] total

11. [A] unconsciously[B]disproportionately[C] indefinitely [D] unaccountably

13. [A] affirm[B]witness[C] observe[D] approve