A a delay to visit a doctor. B the timing to cure a rare disease. C a misunderstanding of real condition. D a poor communication with doctors.

A detailed medical suggestions from high-quality doctors. B a navigation to experienced doctors nearby. C informative descriptions about self-treatment. D a match ofhealth conditions with medical information.

A create a huge database of patients'information. B identify disease and other health risks through search. C use predictive algorithms to mine for information. D analyse patients'information to screen health risks.

A optimistic. B mocking. C pessimistic. D ambiguous

A is a common social problem. B is often found among the rich. C is not that simple as we thought. D is caused by over-taking of calories.

A What we thought about the lack of sleep may be wrong. B Sleep is vital to our mental and physical health. C More and more British people sleep less. D Sleep-loss epidemic is around the comer.

A dreaming up. B calming down. C lying down. D hanging out.

A housing environment. B working situation. C roommates. D diet and mental health.

A It reflects social inequities. B It leads to bad concentration. C It shows the issue of social justice. D It demonstrates a lack of self-control.

A was originally designed to be a news website. B presents important news to its l.65 billion users. C values the relationship with your family and friends most. D doesn't want to work with media business.