the drug proved to be of noticeable side effects.这是病句吗?

问题描述:

the drug proved to be of noticeable side effects.这是病句吗?
这里有个成分是be+of+adj.因为noticeable是adj,但是正确的用法应该是be+of+n表示该名词的形容词;这句话是从书上看到的,大家认为ieshi病句吗?

noticeable 在此是修饰后面的名词 side effects, 所以句子并无问题.
正如 This antique vase has been determined to be of very high value 一样,名词 value 之前不单有形容词 high 还有副词 very 咧.