[单项选择]What is the leading cause of hospital treatment for people aged sixty-five and older in U.S.
A. High blood pressure.
B. Car accident.
C. Heart failure.
D. Lung cancer.

[填空题]

In the United States, what is the leading cause of death from liver failure

[填空题]

What kind of cancer is the sixth-leading cause of cancer-related death worldwide

[单项选择]

Cooking Oil Fumes Cause Tumor

The leading cause of lung cancer among women in the city was cooking oil fumes while men are more likely to develop the disease from smoking, said medical experts after a five-year research study.
Doctors announced the results yesterday with analysis on some new tendencies in lung cancer. They said patients are younger, especially women.
According to the Shanghai Tumor research Institute, more local residents die of lung cancer in the city than anything else. Following breast cancer, it has the second-highest incidence rate.
"An unhealthy lifestyle is a very important reason for lung cancer," said Dr He Yumin from Shanghai Minshen Traditional Chinese Medicine Tumor Diagnosis and Treatment Center.
He followed 2,276 lung cancer patients for five years. Among them, 1,433 were male.
Smoking causes 70 percent of cases among men while only 18 percent of female patients developed
A. Men are more likely to develop lung cancer than women.
B. Women are more likely to develop lung cancer than men.
C. Patients with lung cancer become older, especially males.
D. Patients with lung cancer become younger, especially females.

[单项选择]
The leading cause of lung cancer among women in the city was cooking oil fumes while men are more likely to develop the disease from smoking, said medical experts after a five-year research study.
Doctors announced the results yesterday with analysis on some new tendencies in lung cancer. They said patients are younger, especially women.
According to the Shanghai Tumor research Institute, more local residents die of lung cancer in the city than anything else. Following breast cancer, it has the second-highest incidence rate.
"An unhealthy lifestyle is a very important reason for lung cancer, " said Dr. He Yumin from Shanghai Minshen Traditional Chinese Medicine Tumor Diagnosis and Treatment Center.
He followed 2,276 lung cancer patients for five years. Among them, 1,483 were male.
Smoking causes 70 percent of cases among men while only 18 percent of female patients developed cancer fr
A. Family cancer history.
B. Unhealthy dietary habits.
C. Weak immune systems.
D. Personal health and physiical condition.

[单项选择]Car crashes are the leading cause of injury and death among U.S. children, and though most of us now think of car seats as standard baby equipment, about half of all children under the age of four who’ died in vehicle accidents last year were not restrained. It is calculated that only about two-thirds of children ages five to fifteen buckle their seat belts.
Moreover, the traffic-safety agency estimates that even among parents who always strap their children in, 85% are not doing it properly. They often don’t know where best to place the kids, don’t use the proper restraint for their age and weight, or don’t install the safety seats properly. Despite the reports about front seats collapsing onto back seats when certain car models get in accidents, the safest place in the car for any child up to the age of 12 is still the back seat. Babies up to 9 kg and one year old should ride in rear-facing infant seats.
Never place a child under age 12 in the front seat with a working
A. might not be dangerous if switched off
B. is designed for the safety of children
C. is discharged at 320 km/h and will not triggered by other factors
D. is not working if a child sits in the seat