土壤热容量
参考答案：
指单位重量或单位体积土壤温度每升高或降低1℃所需要吸收或放出的热量。
Had I been a little more careful, I________such a foolish mistake. [ ]
A. won't make
B. hadn't made
C. didn't make
D. wouldn't have made
股票与债券发行的目的不同，发行股票是为了（）。
A．增加营运资金
B．筹集自有资本
C．增加风险投资资本
D．筹集债务资本
