单项选择题


Questions 19 to 22 are based on the conversation you have just heard.

A．The dinosaurs went extinct.
B．A number of meteorites crashed into Earth.
C．Some animal species evolved.
D．Some plants went extinct.
<上一题 目录 下一题>
热门 试题

单项选择题
Land can be polluted by ______ from agriculture.
A．heavy metals
B．slurry from livestock
C．pesticides and nitrate-poor fertilizers
D．rubbish
单项选择题
A．It’s overpriced.B．It makes people crazy.C．Ifs different from other coffee houses’ coffee.D．All the coffee is from Brazil.
A．It’s overpriced.
B．It makes people crazy.
C．Ifs different from other coffee houses’ coffee.
D．All the coffee is from Brazil.
相关试题