【单选题】Before the summer of 2000, the 54 year old John Haughom could accomplish just about any thing at work. 'I could move mountains if I put my mind to it.'he says of those days. But that summer Haughom fo...
A.
Increasingly serious lack of work places.
B.
The second biggest disease in the world.
C.
The most serious problem people have to face.
D.
Increasingly serious stress faced by working people.