2014年诺贝尔化学奖由研制出超分辨率荧光显微镜的美国及德国三位科学家共同获得。很长一段时间里,科学家认为光学显微镜有一个极限:无法小于0.2微米,因此光学显微镜( )①认识的不断发展完善决定着实践的不断深化②世界上只有尚未认识的事物,而没有不可认识的事物③人们对事物的真理性认识不断超越历史条件的制约④真理不会停止前进的步伐,而是在发展中不断超越自身
He is clever and hard-working, so he has reason to succeed in the exam.
It’s , as I trust you so much.
. One of the students hasn’t prepared lessons very well.
Either the boy or his sister must have dinner here.
He bought three books, is in Chinese, in English, and in Japanese.