单项选择题

Questions 20 to 22 are based on the conversation you have just heard.
（）

A．Current issues in economics.
B．Choices faced by conservationists.
C．A recent biology lecture.
D．Topics for a research paper.

相关考题

Norman Borlaug won a Nobel Prize for （）A．his remarkable...

单项选择题Norman Borlaug won a Nobel Prize for （）

A．his remarkable achievements in plant genetics
B．his spectacular contribution to safeguarding world peace
C．his great success in raising Africa’s food production
D．his enduring efforts in combating world hunger

A．It will mainly benefit the wealthy.B．It will stimulat...

单项选择题

A．It will mainly benefit the wealthy.
B．It will stimulate business activities.
C．It will reduce government revenues.
D．It will cut the stockholders’ dividends.

Directions: For this part, you are allowed 30 minutes t...

问答题Directions: For this part, you are allowed 30 minutes to write an essay commenting on the remark "A smile is the shortest distance between two people." You can cite examples to illustrate your point. You should write at least 150 words but no more than 200 words.

Questions 20 to 22 are based on the conversation you have just heard. （）

Questions 20 to 22 are based on the conversation you have just heard.
（）