【单选题】Despite improvements in treatment for asthma, the death rate from this disease has doubled during the past decade from its previous rate. Two possible explanations for this increase have been offered....
A.
Urban populations have doubled in the past decade.
B.
Records of asthma deaths are as accurate for the past twenty years as for the past ten years.
C.
Evidence suggests that bronchial inhalers make the lungs more sensitive to irritation by airborne pollen.
D.
By tem|X)rarily relieving the symptoms of asthma, inhalers encourage sufferers to avoid more beneficial measures.
E.
Ten years ago bronchial inhalers were not available as an asthma treatment.
【判断题】在使用传感器测量同一物理量时,可以有很多原理的传感器供选用。
【单选题】一个2000多年前的中国人提出的“知己知彼,百战不殆”的军事思想,在美国西点军校受到了学员的追捧。此人是( )。
【简答题】A new study suggests dring soda might _ the risk for respiratory disease like asthma and chronic obstructive pulmonary disease (COPD).
【单选题】Asthma ( 哮喘 ) is thought to be a disease partly linked ________ air pollution.