That was also the year of "Guess Who's Coming to Dinner" and of a Supreme Court ruling striking down miscegenation laws
A. marriage
B. illegal marriage
C. legal marriage
D. interracial marriage
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Yet right from the beginning, the entertainment industry has lagged society in its racial mores
A. moral values
B. standards
C. ideas
D. views
胸膜腔负压形成的主要原因是
A. 胸廓的扩张
B. 肺的扩张
C. 肺的回缩力
D. 呼吸肌的收缩力
E. 大气的压力
月度货物运输计划由( )编制。
A. 计划部门
B. 运输部门
C. 货运部门
D. 运输、货运部门共同
肺的弹性阻力来自于
A. 肺的弹性纤维
B. 肺泡表面活性物质
C. 肺泡表面张力
D. 呼吸肌的收缩力
E. 肺泡表面张力和肺的弹性纤维