完形填空（共10小题；每小题1分，满分10分） 请先阅读下面短文，掌握其大意，然后在每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项，使短文内容通顺、合理、结构完整。 These days, cars are designed using computers. Let's look at how a new car is created. First, severaltalk about the new car and any good ideas that they have. Then they sit down at their computers andmany sketches（素描）．The best two or three drawings are chosen and then more detailed drawings ofare developed on the computer. You can change the size, shape or colour of any part on the computer to seethe car would look and then you can choose the best design. Both the inside and the outside of the car have to be designed. Part of the inside of the car isso that the designers can sit in it. They can feel if there is enoughinside and if they can reach.Then some cars are built-there are more than 15, 000 parts of a car to. When everything is known to be ,the cars are made in the factory. Again computers are used to make sure that all the parts areas they are needed. The factory usually stays open all through the night so that the car production never stops.