牛羊泰勒虫病主要通过蜱传播，多发生于蜱活动频繁的夏秋季节。
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From the passage we know that __________.
A. many people prefer sitting to standing when they work in the office
B. many people spend almost half a day sitting
C. many people watch TV with their families at night
D. many people suffer from heart disease, obesity or other diseases
In terms of countering the negative effects of sitting too much, which of the following statements is true?
A. If one does more physical training, it’s OK.
B. Taking exercise and burning more calories can help.
C. Reduce the death rate by using modern medical technologies.
D. Even a good diet and regular exercise are useless.
Why do we say sitting is killing people?
A. The risk of dying for those sitting too much rises by 11 percent.
B. The death rate for those sitting too much is about 20 percent higher than for others.
C. The death rate for those sitting too much is about 40 percent higher than for others.
D. Those sitting too much are usually at a higher risk of dying.
Why do health experts suggest people should stand up for health?
A. Because standing burns more calories.
Because standing provides muscle activity people need.
C. Because standing helps keep blood sugar under control.
D. All of the above.
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