Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
This question has already been analyzed in（ ） and does not require any further discussion. (deep)
【正确答案】：DEPTH
【题目解析】：
根据前文been analyzed in说明空格处应该填名词表示以某种方式，deep的名词形式为depth，意为深度，符合句意。
句意：这个问题已经被深入分析，不需要进一步讨论。