【单选题】Southern troops were often at a disadvantage facing the mobile northern cavalry. While _________ provided an effective, though not perfect, defense line.
【简答题】C企业按合同约定,将库存积压的甲材料拨付给D加工厂进行加工,以制成生产产品所需的乙材料。 以支票支付全部加工费用,金额为2,000元。增值税税率为16%。增值税专用发票已经取得。 基于C企业的立场,支付加工费时,应借记( )总账账户,金额为( )元; 借记应交税费总账账户,金额为( )元; 贷记( )总账户。