But they also have hidden costs. Materials in electric car batteries are hard to produce, which adds to the energy it takes to make them. In fact, the health and environmental costs of making electric cars can be 20 percent greater than usual cars, the report said. The report estimated ...
At first, the company produced accumulators for cars, but they had serious defects (hampering production). When the company used all its capital up, Edison used his own private money to keep the company running. In 1910, they came out with a successful battery, the nickel-iron with a lye...
government during a time when they weren't equipped. The U.S. government had just finished recovering from the Civil War and was not prepared to deal with all these new advancements. Even though the second Industrial Revolution of machinery had a beneficial impact on the US economy in the ...
___ the English examination I would have gone to the concert last Saturday. ___ A. But for B. As for C. In spite of D. Because of 查看答案解析 【单选题】 Cars moved very slowly in the 1920s, but they ___move more quickly than in 1910.___ A. were to can B. did C. will...
braking systems have evolved into a more complex device to adapt to different road conditions. They are a key part of the amazing technology that makes up the automobile. Many forms of brakes have been developed over time as the technology of cars has advanced. Here we will break (pun inten...
several trips on trolley cars on which workmen quitting with their various shifts were returning to their homes for the express purpose of getting into apparently casual conversation with them and finding out how they felt about this and some other matters incident to their emp...
Some seats are the same seats that were installed when the stadium was first built. You and your Grampy could have both sat in the same ballpark chair. So cool.Fenway Park has also had some major upgrades, one being the Fenway Farms, AKA a garden on top of the roof....
How long did the trip last?Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions. Now listen to the interview. Questions 1 to 5 are...
W:They have very similar cultures.Perhaps because they are such close neighbors.Both cultures are very relaxed and friendly.You can go into a corner shop to buy a drink and then end up to talking to shop keeper for hours.What’s more, people in both countries are sports mad. 听第9段对...
48do not go to school in those two months. Some people like49at home, read books, or watch TV. Many50take their lunch to eat at a place with many trees or a nice lake. Some people have51time and money to travel to other countries like France, Japan and Australia. They usually fly...