问题
选择题
Many Chinese students think science subjects are ______ foreign languages.
A．more difficult as
B．less difficult than
C．much difficult than
D．so difficult as
答案
答案：B
比较级的结构为比较级+than，difficult的比较级为more difficult或less difficult，平级的结构为as+形容词原级+as，否定句中第一个as可用so，故本题选B。
