三、根据以下资料,回答91—95题。
91.2008年工业固体废物综合利用量大约是2004年的()。
A. 1.7倍
B. 2.0倍
C. 2.3倍
D. 2.6倍
查看答案
Now, listen to the passage.
What do plants do when they are thirsty?
[A] They give out faint cries.
[B] They make noises to drive away insects.
[C] They extend their water pipes.
[D] They become elastic like rubber bands.
一段长度100bp的DNA,具有4100。种可能的序列组合形式。
A] measurement
[B] calculation
[C] guarantee
[D] optimism
All of the following facts about the telegraph and the Internet are true EXCEPT that
[A] both develop from the most advanced science of their time.
[B] they are operated similarly in technical terms.
[C] both help to change the way we do business and communicate.
[D] both facilitate the communication between cultures and ethnic groups.