运用成本法估价时要注意"逼近",当市场供大于求时,价格应向下调整;当求大于供时,价格应向上调整。()
参考答案:对
Is honesty the best policy? We _ that it is when we are little. [ ]
A. will teach
B. teach
C. are taught
D. will be taught
关井后,压力变化情况:气柱在井内的压力(),井口套压(),井底压力(),地层压力()。