第15题: [单项选择]嗜铬细胞瘤首选下列哪项免疫组化标记?() A. CgA B. calretinin C. GFAP D. HMB45 E. NBA 参考答案:A 答案解析:calretinin为间皮细胞肿瘤标志物;HMIM5是黑色素瘤标志物;GFAP是星形胶质细胞瘤的标志物;CgA是嗜铬细胞瘤特异的标志物;NBA是神经母细胞瘤标志物。
第32题: [填空题]Childern may not enjoy (to eat) sweets after a meal (so much as) (at) other times, but it is health healthier for them (to do) so.
A. to eat B. so much C. at D. to do 参考答案:A改为eating。 答案解析:enjoy doing sth. 喜欢做某事。