结核性与癌性胸膜炎的最主要鉴别点是()
A.胸痛程度
B.胸水细胞学和细菌学检查
C.胸水CEA测定
D.胸水生长速度
E.胸水颜色
参考答案:B
Raising environmental awareness was the aim of our art exhibition ____ last week.
A.to hold
B.held
C.having held
D.being held
编制设计阶段监理规划的重要依据是( )。
A.施工合同
B.设计文件
C.监理合同
D.设计合同