有AP的不用，没有AP的譬如多元偏微分是placement test免的

来源: oops_yz 于 2026-03-23 09:30:34 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.