题目

A.Tom went to the park. B.Tom didn’t go to the park.C.They didn’t go to the park. 答案：【答案】B【解析】【原文】They all went to the park except Tom.一个刻度准确的杆秤，如果用了质量较大的秤砣，则用该秤称出的物体的质量比实际质量（　　）A．偏大B．偏小C．一样大D．无法判断