这一解决方式的弊端在于它已不再广泛适用。
A、The downside of this solution mode lies on it is no longer widely applicated.
B、The downside of this solution mode is that it not practical any more.
C、The trouble with this solution is that it is practical on a large scale.
D、The trouble with this solution is that it no longer is practical on a large scale.
【正确答案】：D
【题目解析】：考点：no longer：不再；practical：实际的，实用的；on a large scale：大规模地，广泛地。
句子结构：that引导表语从句，no longer做副词放在系动词is后面。
