题目

在图2中小球均处于静止状态，a、b板都和小球接触。A图中b板在竖直位置，其它B、C、D图中b板均在水平位置。不计一切摩擦，则小球同时受到a、b板对它有弹力作用的是（   ） 答案：A     根据对话内容，填入合适的单词。 Ben: Hello, Rick, What 1 of movies do you like? Rick: I like action movies, 2 they're exciting, Ben: Don't you 3 comedies or thrillers? Rick: Well, I don't like comedies. They're boring. And thrillers are very 4 ．What kind of movies do you like? Ben: Thrillers, comedies 5 action movies. Are you free (有空的) tomorrow? Rick: Yes. Ben: I 6 to go to a movie. Would you like to go 7 me? Rick: What kind of movie 8 it? Ben: An action movie. Rick: 9 stars (主演) it? Ben: Jet Li. Rick: That's 10 ．I'd love to.