浓缩饲料不含下列哪种饲料？（）
A.预混料
B.能量饲料
C.蛋白质饲料
D.矿物质饲料
参考答案：B
This printer is of good quality. If it _____ break down within the first year, we would repair it at our expense. [ ]
A. would
B. should
C. could
D. might
货币资金包括（）。
A.现金
B.收票据
C.银行存款
D.原材料
E.其他货币资金
