骨巨细胞瘤的好发部位是()。
A.长骨骨端
B.长骨干骺端
C.短骨干骺端
D.长骨骨干
E.扁骨
参考答案:A
--- ________ the class done most of the work?
--- Yes, but the rest ___________ rather difficult.
A.Has, are
B.Has, is
C.Have, are
D.Have, is
铅中毒所致精神障碍的治疗药物不包括()
A.奋乃静
B.巯乙胺
C.二巯丁二钠
D.二巯丙醇
E.依地酸钙钠