震颤麻痹发病的主要原因是由于纹状体:()
A.CO中毒
B.吩噻嗪类药物中毒
C.脑动脉硬化
D.多巴胺减少
E.锰中毒
参考答案:D
( )是综合平均的基本方法,用于对采用量纲的指标的评价结果进行综合。
A.综合平均法
B.综合分析法
C.加权平均法
D.层次分析法
It was not ________ the many blows he received ________ the lack of fighting spirit________ led to his losing the game.
A.so; for; which
B.so much; as; that
C.like; for; that
D.as; as; which