北魏是（）族建立的政权，辽是（）族建立的政权

A. 喉头附近
B. 胸骨上窝
C. 在背部第1、2胸椎附近
D. 在背部第6、7颈椎附近
E. 除上述以外的其他胸背部

Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium exists
B. Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodity
C. Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargo
D. Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo

A. 头皮
B. 上胸部，上臂内侧
C. 大腿，胸腹，背
D. 上肢，小腿
E. 足底