以下不属于永久保管的国库会计档案是（）。
A.已兑付国债销毁表
B.业务交接登记簿
C.中央决算说明书
D.本级征收机关年度对账表
参考答案：D
— When is your birthday?
— ________ [ ]
A. I was born in 1994.
B. I was born in Shanghai.
C. It's on 8th August.
D. I have a birthday party every year.
燃油锅炉的管式空气预热器为何多数卧式布置？
