1986年国家体委公布《关于体育体制改革的决定（草案）》，决定的改革重点是（）。
参考答案：竞赛和训练体制
In his talk, the____ Prime Minister expressed his satisfaction, ____ that he had enjoyed his stay here. [ ]
A. visiting, add
B. visited, adding
C. visiting, adding
D. visited, added
关于腺样囊性癌的说法，错误的是：（）
A.肿瘤可呈跳跃性侵袭
B.肿瘤沿骨髓腔侵袭时在影像学上表现为明显骨破坏
C.肿瘤易沿血管神经扩散
D.肿瘤易侵入血管造成血行转移
E.颈淋巴结转移较少
