【单选题】Try your best to run fast, ________ you will fall behind others. [ ]
【单选题】flow, run or fall out.
【单选题】. As Christmas draws near, they feel more and more uneasy with their stored money ____.
【单选题】Don't run in the hallways, or you may _____ somebody. [ ]
【单选题】It is said that the transport company will soon run ______ petroleum.
【单选题】Beginning from a long run equilibrium in an increasing cost industry, if there is a substantial, permanent fall in demand for industry output:
A.
firms will leave the industry, the quantity produced will fall, and prices will end up lower than their initial long run equilibrium level.
B.
firms will leave the industry, the quantity produced will fall, and prices will end up higher than their initial long run equilibrium level.
C.
firms will leave the industry, the quantity produced will fall, and prices will end up at the same level as their initial long run equilibrium level.
D.
firms will enter the industry, the quantity produced will rise, and prices will end up lower than their initial long run equilibrium level.
【单选题】If oil supplies run out, the man may have to fall back on the horse.(改错题)