问题 更新时间2023/4/3 12:59:00 The professor could hardly find sufficient grounds _____his arguments in favor of the new theory. A、 to be based on B、 to base on C、 which to base on D、 on which to base 答案 登录 注册 正确答案为:D 出自:石家庄铁道大学 >> 石家庄铁道大学大学英语1