单项选择题

The theory about a Snowball Earth is significant in that it can ______.

A．decode the mystery of life
B．predict the formation of a new supercontinent
C．adjust the planet's climate
D．prevent another Snowball Earth from happening

<上一题目录下一题>

热门试题

单项选择题

Snowball Earth might have occurred as a result of ______.

A．ice reflecting sunlight and heat
B．the growth of polar ice sheets
C．the increase of rainfall
D．the huge loss of carbon dioxide

单项选择题

An appropriate title for this passage might be ______.

A．The Functions of Keeping a Diary
B．Why I Keep a Diary
C．Calming Down
D．How to Keep a Diary