单项选择题

According to the passage, black holes ______.

A．include protons
B．oppose the quantum theory
C．stop anything from escaping
D．give off radiation
<上一题 目录 下一题>
热门 试题

单项选择题
From the example mentioned in Paragraph 2, what kind of the man is Hawking
A．He is an inflexible man.
B．He is a man who admits his mistakes bravely.
C．He is a man who always makes mistakes.
D．He is a man who is very humorous.
相关试题