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Other websites suggest that a person with a cold should keep a piece of raw garlic in his or her mouth all day and bite down on it every few minutes to release the juice. People with smelly feet are told to soak their feet in tea for half an hour.

The websites remedies might be unpleasant or odd, but they probably will cause harm. And who knows? They might actually be unhelpful.

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单选题

An herbal remedy for helping your memory may also be a blood thinner. So if your doctor prescribed (put you on) a blood thinner and you start taking this herb without asking your doctor about it, a simple cut could be deadly; you might not be able to stop bleeding.

A person who is taking a prescribed drug should probably talk to the doctor before taking an herbal remedy.

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The bottom line is this: be careful when using the Internet as a health resource. Use it to find information that you can discuss with your doctor. But don’t spend a lot of money on “miracle cures”.

The best way to use the Internet as a medical resource is to read about your illness and discuss what you find out with your doctor.

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填空题

disease substance classification prevent figure

In a small-town farm market, hundreds of elderly people drink a glass of sour dark cherry juice every day. These happy senior citizens, some of them over the age of 90, claim that the natural fruit juice cures—or at least decreases—the pain of their arthritis, a 6 1 of the joints of the aging body. It’s a folk remedy, not a proven medical therapy. Nevertheless, science is beginning to 7 2 out why sour cherry juice might work to improve the health of patients with arthritis. The secret is in the 8 3 that gives the cherries their dark red color. It belongs to a 9 4 of natural nutrients that color blueberries, strawberries, plums, and other fruits—and vegetables too. Moreover, these coloring substances may help to 10 5 serious health disorders like heart disease and cancer. In other words, vitamins and fiber are not the only reasons to eat fruits and vegetables. “To take advantage of natural whole foods,” advise nutritionists.

单选题

机动法作静定梁影响线的理论依据是( )

  • 虚力原理

  • 虚位移原理

  • 位移互等定理

  • 叠加原理

单选题

机动法作静定梁影响线的假设有( )

  • 杆件为刚性杆

  • 杆件为弹性杆

  • 杆件为塑性杆

  • 杆件为弹塑性杆

单选题

图示简支梁在移动荷载作用下,K截面的最大弯矩是( )

单选题

图示梁的某量值的影响线,其中竖坐标表示P=1作用在( )

  • K点产生的值

  • K点产生的值

  • D点产生的值

  • D点产生的值

单选题

同一结构,不考虑阻尼时的自振频率为ω,考虑阻尼时的自振频率为ωD,则(  )

  • 与的关系不确定

单选题

在图示结构中,为使体系自振频率增大,可以( )

  • 增大P

  • 增大m

  • 增大EI

  • 增大l