Thetwomajorpartiestodayhave（）differenceinpolicyorientation.
A. no
B. little
C. some
D. great
Intermsoforganization,thetwomajorparties（）
A. havetightorganizationalstructure
B. havestrongleadershipatthenationallevel
C. arewellorganizedatthegrassrootslevel
D. aremerelypoliticalforcescomingtogetherinalooseway
DSM-Ⅳ诊断系统对心境障碍的类型划分不包括（）
A. 恶劣心境
B. 重性心境障碍
C. 环形心境障碍
D. 躁狂发作
WhenthedelegatesmetatPhiladelphiain1787,theirtaskwas（）
A. towriteanewconstitution
B. toseewhattheycandoabouttheArticlesofConfederation
C. todesignanewformofgovernment
D. torevisetheArticlesofConfederation
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