输注血小板制品有些什么不良反应?
下述造影剂的描述，错误的是() ["A．高密度造影剂称为阳性造影剂","B．低密度造影剂称为阴性造影剂","C．非离子型造影剂比离子型安全","D．非离子型造影剂的渗透压比离子型的低","E．非离子型造影剂比离子型造影剂价格低廉"]
脑干肿瘤的照射野设计() ["A．沿肿瘤边缘即可","B．于瘤体外适当扩大1～2cm","C．应在瘤体外各放4cm","D．应全脑+颈段脊髓照射","E．应全脑、全脊髓照射"]
软组织损伤的体征可有() ["A．压痛","B．肿胀","C．发绀","D．抽屉试验阳性","E．直腿抬高试验阳性"]
口腔癌最常见的是() ["A．牙龈癌","B．舌癌","C．涎腺癌","D．颊癌","E．腭癌"]
输血反应有哪些?
