Questions 11 to 18 are based on the conversation you have just heard.
A. The weather yesterday.
B. A polluted river.
C. Hotel accommodations.
D. The quality of the air.
查看答案
Name two of the animals mentioned in the passage which are dying out
What is wrong with the argument for not preserving rare species is that it neglects ______.
Questions 11 to 18 are based on the conversation you have just heard.
A. Mark’s happy that his parents are coming.
B. Mark’s thinking about a number of things.
C. Mark’s not feeling very well.
D. Mark’s looking for a new apartment.
【11】 技术用在数字传输技术领域,以传输的可靠性为目的,进行差错控制。