毛 * * 首次在下列文献之中提出了“新民主主义革命”科学概念( )A．《中国革命与中国

2t﹣4=3t+5．

塔盘漏液时应该（）。

A.提高塔底温度

B.适当降低塔压

C.增大进料量或回流量

安装在室内的雨水管道安装后应做（）。

A、满水试验

B、灌水试验

C、水压试验

D、通球试验

A cashier mentally reversed the digits of one customer’s correct amount of change and thus gave the customer art incorrect amount of change. If the cash register contained 45 cents more than it should have as a result of this error, which of the following could have been the correct amount of change in cents ？（）

A.14

B.45

C.54

D.65

E.83