[单项选择]What point does Ricky Bland make about the fast-food industry（　）.
A. Its attitude to staff development is often misunderstood.
B. It has difficulty recruiting suitable staff.
C. It invests more in technology than in staff.

When doctors need information about what does of medication to prescribe, they usually consult a fat navy-blue book called The Physicians’ Desk Reference, or PDR, an extensive compilation of data about drugs form their manufacturers. But the doses recommended in the PDR may be too high for many people and may cause adverse reactions, ranging from dizziness trod nausea all the way to death, according to an article published last month in the journal {{I}}Postgraduate Medicine{{/I}}.
For many drugs—including Viagra, Prozac and some medicines used to treat high blood pressure, allergies, insomnia and high cholesterol—smaller doses would work just as well, With far less risk of bad reactions, said Jay Cohen, the author of the article.
"Side effects drive a lot of people out of treatment that they need," Dr. Cohen said, nothing that people with chronic conditions like high blood pressure, headaches and depression often gave up trying to trea
A. He found out the mistakes of PDR.
B. He lowered the drug doses in treating patients.
C. He used different doses according to individuals.
D. He suggested medical schools teach the importance of lowering doses.

Think about what would make you really, really happy. More money Wrong. Smiling, well-adjusted kids Wrong again. The fact is we are terrible at predicting the source of joy. And whatever choices we do make, we likely later decide it was all for the best.
These are insights from happiness economics, perhaps the hottest field in what used to be called the dismal science. Happiness is everywhere--on the best-seller lists, in the minds of policymakers, and front and center for economists--yet it remains elusive. The golden role of economics has always been that well-being is a simple function of income. That’s why nations and people alike strive for higher incomes-money gives us choice and a measure of freedom. After a certain income can, we simply don’t get any happier. And it isn’t what we have, but whether we have more than our neighbor, that really matters. So the news last week that in 2006 top hedge-fund managers took home $ 240 million, minimum, proba