转变政府职能的关键是（）。
A.处理好计划与市场的关系
B.处理好价格与价值的关系
C.中央与地方分权
D.政企职能分开
参考答案：D
下述肝门部胆管癌CT征象，哪项不对（）
A.增强早期，肿块无明显强化
B.CT平扫，肝门区等密度或低密度肿块
C.肝内胆管一致性或局限性扩张
D.延迟扫描，肿块呈高密度
E.肝门部胆管形态无变化
When his dad died, he felt his world had turned upside - down. [ ]
A. in case
B. as if
C. so that
D. even though
