在推销观念指导下，企业的经营重点是（）。 A.产品 B.生产 C.顾客需要 D.社会

The reason why science exists is to improve our lives. Sometimes science can ruin our small guilty pleasures we nature to be happier, though. These four little truths are just some of those.
Sleeping with pets is a good way to catch the plague(瘟疫), or some other bacterial infections, as is claimed in the study done in February 2011 in Emerging Infectious Diseases magazine. The study shares a case of a nine-year-old boy whose cat caught the plague and gave it to its owners while they were sharing a bed. A regular visit to the vet can greatly reduce the risk of your pet catching any disease that may infect the owner as well.
A recent study done on 200,000 people has shown that vitamin supplements do nothing to improve our lives, and what is worse—they actively increase our death risk. This conclusion from 2010 was so unbelievable that it made researchers do even more studies. Each study had the same result. People who choose vitamin supplements over fruit and vegetables are the same as people who choose to eat a burger over a healthy salad.
People who use the solarium(日光浴室)experience certain changes to their brains that are very similar to many caused by drug addiction. According to a study, our brain can in fact recognize the difference between the natural UV light and the solarium.
Long exposure to artificial light during the night is directly linked to a higher risk of breast cancer, obesity and depression. Exposure to artificial light before sleeping disturbs the natural biorhythms(生物节奏)of our bodies, which leads to restriction on the hormone(荷尔蒙)melatonin, which is the hormone that helps us fall asleep.

Title: Four scientific小题1:_______
Passage outline	Supporting details
Sharing bed with your pet is a terrible idea	*You will probably be infected with小题2:______. *To reduce such risk, you should take your pet to visit the vet小题3:______.
Be小题4:______about vitamin supplements	Vitamin supplements actively increase the risk of小题5:______.
You can become小题6:_____ to solariums	The solarium may bring about changes to the小题7:______just like drugs do.
小题8:_____long exposure to artificial lights	*You are likely to小题9:_____from breast cancer, obesity and depression after long exposure to artificial lights. *The natural biorhythms of your bodies will be disturbed and you will find it not小题10:______to fall asleep.