小测验：选择正确的单词

1. uncertainty principle
   测不准原理，不定性原理
   

1. Life is full of uncertainty.
   人生充满了无法预测的事。
2. There was something of uncertainty in his reply.
   他的答复有点含糊。
3. Chance or uncertainty;doubt.
   机会或不确定;怀疑
4. a fluid situation fraught with uncertainty.
   充满不稳定因素的动荡局势
5. Fraught with uncertainty or doubt; undecided.
   未定局的充满不定或怀疑的;未决的

　2个名词解释