The Norwegian government is doin

The Norwegian government is doing its best to keep the oil industry under control. A new law limits exploration to an area 1_____ its long coastline. Oil companies are not allowed to employ more than a certain 2_____ of foreign workers. But the oil industry has a way of getting 3_____ such problems, and few people believe that the government will be able to hold things back 4_____.
Since World War Ⅱ, the 5_____ has been carrying out a programme of development in the area north of the Arctic Circle, 6_____ has had a great deal of success： Tromso has been built up into a local capital with a university, a large hospital and a healthy industry. But the oil industry has already started to 7_____ people south, and within a few years the whole northern policy could be 8_____.
The 9_____ of the oil industry would not be limited to the north, however. As a result of nearly 100 per cent employment, tourism and service industries will lose most of their workers 10_____ the oil industry. Some smaller industries might even 11_____ altogether when it becomes cheaper to buy goods from abroad.
The real argument over oil is, as a matter of fact, its threat to the Norwegian 12_____ of life. Farmers and fishermen do not make up the majority of the population, but they are an important 13_____ of it. Norwegians see in them many of the qualities that they regard with 14_____ as essentially Norwegian. And it is 15_____ who are most critical of the oil industry. They fear it might cause damage to the countryside and to the sea.
6
A、is
B、which
C、that
D、this
【正确答案】：B
【题目解析】：本题考查非限制性定语从句。空缺处应填一个关系代词，其所引导的从句修饰前面提到的事物programme，因此排除选项A、D。C项that不能引导非限制性定语从句。答案为B。