隐睾的危害不包括() ["A．影响阴茎的发育","B．影响睾丸发育","C．发生肿瘤机会大","D．双侧者影响生育能力","E．影响患儿的生长发育"]
肾下垂应与下列哪些疾病相鉴别() ["A．异位肾","B．腹部肿物","C．肝脾肿大","D．胃下垂","E．多囊肾"]
有关精索静脉曲张不正确的有() ["A．婴幼儿精索静脉曲张发病率极低","B．青春期精索静脉曲张发病率高","C．肾癌会引起继发的精索静脉曲张","D．精索静脉曲张可继发睾丸鞘膜积液","E．其他部位的肿瘤不会引起继发的精索静脉曲张"]
以下疾病，透光试验阴性的有() ["A．睾丸肿瘤","B．附睾结核","C．腹股沟斜疝","D．睾丸鞘膜积液","E．精索鞘膜积液"]
关于肾下垂，正确的有() ["A．多发生于矮胖体型的女性","B．可引起肾绞痛","C．一般需手术治疗","D．排泄性尿路造影可诊断","E．不会引起高血压"]
归纳导致血小板输注无效的原因。
