→ pentimento:that 是限定關代，指前方的price，作為charge 的受詞。 12/18 12:08
→ pentimento:而 at which 帶入後，不論限定與否，都會多一個 at。 12/18 12:09
→ musiclife729:好像是還原會有誤吧sb charge for sth at price 12/18 12:09
→ musiclife729:還是p大的清楚些~ 12/18 12:10
238. (26655-!-item-!-188;#058&002088) (GWD-4-4)
A new hair-growth drug is being sold for three times the price,
per milligram, (as) the drug's maker charges for
another product with the same active ingredient.
答案
C. that
E選項 at which為什麼錯??
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