生成定量数据的频数分布表时,首先要对数据()
A.分类
B.确定组距
C.分组
D.确定组频数
参考答案:C
65. Two dogs ______ a bone, and a third runs away with it.
A.fight back
B.fight with
C.fight against
D.fight for
心阴虚证的常见表现有( )
A.精神疲惫、自汗乏力、面色淡白B.身热,面赤,口渴C.畏寒肢冷、心痛、面色白或面唇青紫D.五心烦热,午后潮热