英语翻译Only in the most exceptional circumstances is the lifesp

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/04 12:54:41

英语翻译
Only in the most exceptional circumstances is the lifespan of a patent extended to alter this normal process of events.
The longest extension ever granted was to Georges Valensi; his 1939 patent for color TV receiver circuitry was extended until 1971 because for most of the patent’s normal life there was no colour TV to receive and thus no hope of reward for the invention.
43.George Valensi’s patent lasted until 1971 because ________.
[A] nobody would offer any reward for his patent prior to that time
[B] his patent could not be put to use for an unusually long time
[C] there were not enough TV stations to provide colour programmes
[D] the colour TV receiver was not available until that time
我选了D 能不能帮我分析一下

不好意思,看错了!应该是B,他的专利好长一段时间都没被投入使用.其实这与D的意思有点接近,而B发生在前,先要使用专利,才能选出彩电,所以B是优先与D,
再问：但是标准答案选B 你再看看
再答：前面回答里，是：先要使用专利，才能造出彩电.....

英语翻译Only in the most exceptional circumstances is the lifesp 英语翻译If,in exceptional circumstances,you are experiencing dif in the circumstances 与under the circumstances 英语翻译Another reason is to reproduce the exceptional human bei Most people would agree that only in exceptional circumstanc 英语翻译in this article,the author examine the circumstances in 英语翻译In the circumstances of dividing the activity into respo Only the happiness in hope is the most thorough and the most 英语翻译1.In these unusually difficult circumstances,the people 英语翻译In the circumstances,therefore,it might appear perverse 英语翻译Unless there are exceptional circumstances Consumer Affa The great interest in exceptional children shown in public e