问黄金阅读4.0, electricity from wind

13. Paragraph 1: Since 1980, the use of wind to produce electricity has been growing rapidly. █In 1994 there were nearly 20,000 wind turbines worldwide, most grouped in clusters called wind farms that collectively produced 3,000 megawatts of electricity. █Most were in Denmark (which got 3 percent of its electricity from wind turbines) and California (where 17,000 machines produced 1 percent of the state’s electricity, enough to meet the residential needs of a city as large as San Francisco). █In principle, all the power needs of the United States could be provided by exploiting the wind potential of just three states—North Dakota, South Dakota, and Texas. █

13. Look at the four squares █that indicate where the following sentence could be added to the passage.

Some companies in the power industry are aware of this wider possibility and are planning sizable wind-farm projects in states other than California.

Where would the sentence best fit?

Click on a square █to add the sentence to the passage.

我选C，答案是D。

why?

C之前出现了California，那后接入插入句，很对啊。

翻译成中文就可以了。

前面一句是 美国所有对风力的需求只需要开发三个州就可以了

接：一些什么什么已经意识到了除了加州拓宽的可能性。。。。

州和州的联系。

两个加州没有必然关系。