题干

2014年5月,在仙海风景区举行了绵阳建市以来最大规模的龙舟赛。下列说法正确的是(   )

A:运动员用浆向后划水使龙舟前进,说明物体之间力的作用是相互的

B:龙舟到达终点后不能立即停下来,是因为受到惯性力的作用

C:运动员不再划龙舟,龙舟会慢慢停下来,说明物体运动情况要力来维持

D:龙舟静止时没有惯性,运动起来后才有惯性

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A

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    The First Robotics Competition (FRC) was held in Shenzhen. A total of 35 high-school student teams from China, the United Kingdom, Turkey, Poland and other countries joined the two-day contest with their hand-crafted robots.

    The FRC is a world-class robotics competition that was first launched in the United States in 1989. It encourages students to improve their hands-on skills and creative capabilities.

    There are strict rules, limited resources and an intense six-week time limit before the competition. Teams of student should raise money, design a team brand and improve their teamwork skills, as well as build industrial-size robots to compete. The rules of the game include two groups, and each group has three teams. The group with the highest score wins the game.

    The seven teams who won the top prizes in the FRC  Shenzhen Regional will take part in the First Championship to be held in the United States next month.

    Yin Shifei, secretary general, said the competition not only enables students to improve their programming, decision-making and problem-solving skills, but also encourages them to cooperate and share with other people

    According to Yin, a Shenzhen team invited over 40 left-behind children to the city to watch the FRC game because they wanted to make education more equitable. And the left-behind children can get fair education. These children's parents are migrant workers in Shenzhen, but they are left behind i their hometowns.

    Shenzhen became the first city to host an FRC region in Asia last year, and another regional contest will be held in Shanghai this year.