小企业的长期待摊费用包括下列()。 ["A、已提足折旧的固定资产的改建支出","B、经营租入固定资产的改建支出","C、固定资产的大修理支出","D、固定资产的日常修理支出"]
当T-PSA在4.0~10.0μg/L时,F-PSA/T-PSA比值为()可作为前列腺肥大和前列腺癌的鉴别点() ["0.05","0.15","0.25","0.35","0.45"]
放射性"三废"
酶类肿瘤标志物的特点是() ["特异性较高,敏感性较高","特异性不高,敏感性不高","特异性不高,敏感性较高","特异性较高,敏感性不高","无特异性,无敏感性"]
电磁辐射
价格与价值