【简答题】以△P和△c表示推动力的传质速率方程中,当平衡关系符合亨利定律时,传质总系数与分系数的关系是____________________________或___________________________,说明吸收总阻力等于______________与_______________之和。
【简答题】Speculators profit _____ the changes in prices
【单选题】电导率仪在用来测量电导率之前, 必须进行
【单选题】Speculators______.
B.
facilitate hedging opportunities
C.
profit from buying low and selling high
D.
facilitate price discovery
【简答题】以△P和△c表示推动力的传质速率方程中,当平衡关系符合亨利定律时,传质总系数与分系数的关系是____________________________或___________________________,说明吸收总阻力等于______________与_______________之和。
【单选题】电导率仪在用来测量电导率之前, 必须进行 。
【单选题】电导率仪在用来测量电导率之前 , 必须进行:
【判断题】Volatility in the exchange rates could make speculators get short-term profit.
【单选题】In the foreign exchange market, ________ seek all of their profit from exchange rate changes while ________ seek to profit from simultaneous exchange rate differences in different markets.
A.
wholesalers; retailers
B.
central banks; treasuries
C.
speculators; arbitragers