合并重症肌无力的纵隔肿瘤是()
A.神经源性肿瘤
B.畸胎瘤
C.心包囊肿
D.胸腺瘤
E.淋巴源性肿瘤
参考答案:D
.
The famous writer’s play, ________ in one of my books, was published in 1963.
A.to mention
B.mentioned
C.to be mentioned
D.mentioning
在不同的纬度,物体的重量不一样。