情绪
参考答案:情绪:是人类对于各种认知对象的一种内心感受或态度。
All the soldiers were placed exactly ______ the local government wanted them for the control of the comeback of the flood.
A.while
B.when
C.where
D.though
关于电泳的叙述,不正确的是()
A.必须有冷却装置
B.一般采用稳定直流电压和电流
C.可用于核酸的分离
D.可用于蛋白的分离
E.核酸分子由负极向正极移动