下列卵巢肿瘤中，哪种肿瘤不产生性激素
A．黏液性囊腺瘤B．原发性绒毛膜癌C．畸胎瘤D．卵泡膜细胞瘤E．颗粒细胞瘤
参考答案：C
The ______ man told us his past days before he _______. His _____ made us very sad. [ ]
A. dying; died; death
B. dead; dying; die
C. dead; died; dying
D. dead; dying; death
承重的支架柱其荷载应直接作用于立杆的轴线上严禁承受（）荷载并应按单立杆轴心受压计算。
