A. in most secondary schools B. in all secondary schools C. in most primary schools, at half- price D. in most schools, at no expense to the taxpayer 参考答案:A 答案解析:[精解] 本题是细节问题，要求回答计算机已经在什么范围内得到使用。根据文中第10行"Virtually every secondary school has been provided with at
