[問題]GWD13SCQ8

[waterpue]

A new hair- growing is being sold for three times the price,per milligram,as the drug's maker charges another for product with the same active ingredient.

a as
b than
c that
d of what
e at which
ans:d

可以問一下怎麼選的嘛?為什麼不能選a?

[sweetymanman]

這一題有討論過了，可以參考一下

http://www.formosamba.com/phpBB3/viewtopi ... highlight=