什么是泵吸入口气液比？
参考答案：
⑴所谓泵吸入口气液比就是在泵吸入口处游离气体；
⑵所占油气水三相总体积的百分数。
—Hi, Betty! __________?
—She is buying some flowers for her mother. [ ]
A. What is Lily doing
B. What does Lily do
C. What did Lily do
如果已计提跌价准备的短期投资其市价以后又恢复，按恢复增加的数额，全数记人“短期投资跌价准备”科目借方。( )
