Julia is very cleverIn fact I doubt whether anyone in the class has IQ．A. a highB. a high

问题补充：

Julia is very clever．In fact，I doubt whether anyone in the class has IQ．

A. a high

B. a higher

C. the higher

D. the highest

答案：

A. a high

(答案→)B. a higher

C. the higher

D. the highest

解析：考查比较级的用法。a+比较级表示泛指“一个更......的人或物”；the +比较级表示特指那个更......的。句意“茱莉亚很聪明。我怀疑班里没有比她更高智商的人。”故选B。