在房地产开发项目财务评价中净现值评价标准的临界值是（）
A.零
B.1
C.等于行业基准贴现率
D.等于目标投资收益率
参考答案：A
The science of computer,____ rapid progress has been made, is the most important of all.
A．to which
B．from which
C．in which
D．of which
下列哪项不是肺结核恶化的表现
A．干酪样坏死
B．液化及空洞
C．纤维化
D．支气管播散
E．经淋巴管蔓延
