下列属于小企业的非流动资产的是（）。
A.长期债券投资
B.低值易耗品
C.生产性生物资产
D.长期待摊费用
参考答案：A, C, D
—Tom, if it doesn't rain, we can go climbing and have a picnic there.
—________. I like climbing.[ ]
A. Well done
B. That's great
C. No problem
D. That's it
管道系统特性曲线
