单项选择题

Questions 18-21 are based on the passage you have just heard. What is one of the reasons for the speaker to switch his interest to underwater exploration

A．It is more exciting than space travel.
B．It is much cheaper than space travel.
C．It is much safer than space travel.
D．It is less time-consuming than space travel.

<上一题目录下一题>

热门试题

单项选择题

What is the finding of the new study of aspirin

A．It has been proven to be the best painkiller.
B．It is a possible cure for heart disease.
C．It can help lower high body temperature effectively.
D．It reduces the chance of death for heart surgery patients.

单项选择题

What social scientists have long felt puzzled about is why______.

A．the mortality rate can not be predicted
B．the death toll remained stable year after year
C．a quota for each type of death has not come into being
D．people lost their lives every year for this or that reason

Questions 18-21 are based on the passage you have just heard. What is one of the reasons for the speaker to switch his interest to underwater exploration 您的浏览器不支持 audio 元素。

Questions 18-21 are based on the passage you have just heard. What is one of the reasons for the speaker to switch his interest to underwater exploration