图斑最小上图面积标准中，城镇村及工矿用地为图上（）mm2。
A.15
B.8
C.6
D.4
参考答案：D
— What did he say in _____ of his stupid behavior?
— He admitted having made a serious mistake. [ ]
A. explanation
B. favor
C. case
D. fear
肺切除和气管切开可使下列哪种死腔量减少（）
A.机械死腔
B.解剖死腔
C.肺泡死腔
D.生理死腔
E.以上均不是
