填空 医生们都相信肺癌与吸烟有关 Doctors believe that lung cancer ________ smoking
问题描述：
填空 医生们都相信肺癌与吸烟有关 Doctors believe that lung cancer ________ smoking
答
填空 医生们都相信肺癌与吸烟有关 Doctors believe that lung cancer ________ smoking