题目

在学校运动会上，小汉在男子5kg级铅球项目中以14m的成绩获得第一名。如图所示为小汉投掷铅球的过程示意图，若他掷铅球时用力是500N，则小汉在掷铅球的过程中，对铅球所做的功是（ ） A . 700J B . 7000J C . 0 D . 条件不足，无法确定 答案：D完成对话，每空一词 　　A: Can I help you? 　　B: Yes, sir. My 1 is lost. Please help me 2 her. 　　A: Don't worry. Tell me, what she looks 3 ? 　　B: Er… she 4 a round face, 5 big eyes and a small nose. 　　A: How 6 is she? 　　B: She's 7 five years old. 　　A: Is she 8 a pink dress? 　　B: Yes, she is! You know her? Where is she? 　　A: 9 here, please. There's a little girl here. 　　Girl: Mummy 　　B: Oh dear! You are here! Thank you very much, sir. 　　A: It's a 10. 1．________ 2．________ 3．________ 4．________ 5．________ 6．________ 7．________ 8．________ 9．________ 10．_______