多发性内分泌腺瘤3型
参考答案：
嗜铬细胞瘤伴发甲状腺髓样癌、肾上腺髓质增生及多发性粘膜神经瘤，称之多发性内分泌腺瘤3型。
He promised to come, but he hasn't ______ yet.
A．turned up
B．turned over
C．turned out
D．turned back
A．
B．
C．
D．
