Effective prevention against physical harms has never been ______ urgently needed, especially in schools.
【正确答案】 A
【答案解析】解析：本题的关键是要区分4种选项的用法。注意as的正确用法应该是as+adj.(adv.)+as；such应该与that搭配，组成such...that的结构，quite在本句中与前面的never不相配合。正确答案为more。