表示压力时,要注意压力的基准和单位。如绝压和表压就是()不同的两种压力。
A、压强
B、介质
C、基准
D、单位
参考答案:C
— What do you think of investing in today's stock market?
— There are many risks, but also many ________ gains. [ ]
A. potential
B. confidential
C. influential
D. preferential
干、湿表实用测湿公式e=etw-AP(t-tw)中,A值的大小主要决定于(),也和()有关。