[填空题]The wealth created by the rise of industry has resulted in much that is wasteful and evil.

[简答题]Outline: 1. Wealth has always been what some people long for. 2. There is no doubt that wealth brings happiness especially in a modem society. 3. But wealth seldom goes hand in hand with happiness.

[单项选择]A transport layer protocol usually has several responsibilities．One is to create a process-to-process communication；UDP uses (71) numbers to accomplish this．Another responsibility is to providecontrol mechanisms at the transport level．UDP does this task at a very minimal level．There is no flowcontrol mechanism and there is no (72) for received packet．UDP, however,does provide errorcontrol to some extent．If UDP detects an error in the received packet，it will silently drop it．
The transport layer also provides a connection mechanism for the processes．The (73) must be able to send streams of data to the transport layer．It is the responsibility of the transport layer at (74) station to make the connection with the receiver,chop the stream into transportable units，numberthem，and send them one by one．It is the responsibility of the transport layer at the receiving end to waituntil all the different units belonging to the same process have arrived，check
A. hop
B. port
C. route
D. packet

[填空题]The study of genetics has given rise to a profitable new industry called biotechnology. As the name __31__ , it combines biology and modern technology through such __32__ as genetic engineering. Some of the new biotech companies, as they are called, __33__ in agriculture and are working enthusiastically to patent (取得专利) seeds that give a high yield (产量), that __34__ disease, drought and frost, and that reduce the need for dangerous chemicals. __35__ such goals could be achieved, it would be most beneficial. But some have raised __36__ about genetically engineered crops. "In nature, genetic diversity (多样性) is created within certain limits," says the book Genetic Engineering, Food and Our Environment. "A rose can be crossed(杂交) with a different kind of rose, but a lose will __37__ cross with a potato ..." Genetic engineering, on the other hand, usually involves taking genes from one species and inserting them into another in an attempt to __38__ a desired
A. A．issues
B．height
C．difficulties
D．goals