听力题 The expected life span of Beijing residents has gone up to 75. 5 years old, compared with 74. 4 years old a decade earlier, while the death rate of middle-aged residents increased dramatically, according to a recent official report. The report, made public by the Beijing Disease Control and Prevention Center, said the past mortality of people age between 35 to 54 years old had gone up 58. 5 percent during the past ten years, from 158 people per 100,000 in 1991 to 251 people per 100,000 last year. Infant and maternal mortality rates went down 132 percent and 147 percent respectively. Health experts said chronic non-infectious diseases were the main causes of death, covering 60 percent of the total number of deaths. The male mortality rate is higher than that of females, and the death rate among rural residents is higher than that of the urban ones.

单选题 The expected life-span of Beijing residents has gone up by _______compared with that a decade earlier.

单选题 The _______mortality rate had gone up greatly during the past 10 years.