Problem: Please answer a question about the following article about Asphalt:
People can be exposed to asphalt in the workplace by breathing in fumes or skin absorption. The National Institute for Occupational Safety and Health (NIOSH) has set a Recommended exposure limit (REL) of 5 mg/m3 over a 15-minute period. Asphalt is basically an inert material that must be heated or diluted to a point where it becomes workable for the production of materials for paving, roofing, and other applications. In examining the potential health hazards associated with asphalt, the International Agency for Research on Cancer (IARC) determined that it is the application parameters, predominantly temperature, that effect occupational exposure and the potential bioavailable carcinogenic hazard/risk of the asphalt emissions. In particular, temperatures greater than 199 °C (390 °F), were shown to produce a greater exposure risk than when asphalt was heated to lower temperatures, such as those typically used in asphalt pavement mix production and placement.
By what means can humans be exposed to bitumen?
A: fumes or skin
Problem: Please answer a question about the following article about Kanye West:
On October 1, 2011, Kanye West premiered his women's fashion label, DW Kanye West at Paris Fashion Week. He received support from DSquared2 duo Dean and Dan Caten, Olivier Theyskens, Jeremy Scott, Azzedine Alaïa, and the Olsen twins, who were also in attendance during his show. His debut fashion show received mixed-to-negative reviews, ranging from reserved observations by Style.com to excoriating commentary by The Wall Street Journal, The New York Times, the International Herald Tribune, Elleuk.com, The Daily Telegraph, Harper's Bazaar and many others. On March 6, 2012, West premiered a second fashion line at Paris Fashion Week. The line's reception was markedly improved from the previous presentation, with a number of critics heralding West for his "much improved" sophomore effort.
Form whom was Kanye's 2011 fashion label designed for?
A: women
Problem: Please answer a question about the following article about Antenna (radio):
Resonant antennas are expected to be used around a particular resonant frequency; an antenna must therefore be built or ordered to match the frequency range of the intended application. A particular antenna design will present a particular feedpoint impedance. While this may affect the choice of an antenna, an antenna's impedance can also be adapted to the desired impedance level of a system using a matching network while maintaining the other characteristics (except for a possible loss of efficiency).
If you were unable to choose the antenna you wanted how could you still achieve this result?
A: matching network
Problem: Please answer a question about the following article about Eritrea:
Eritrea has achieved significant improvements in health care and is one of the few countries to be on target to meet its Millennium Development Goal (MDG) targets in health, in particular child health. Life expectancy at birth has increased from 39.1 in 1960 to 59.5 years in 2008, maternal and child mortality rates have dropped dramatically and the health infrastructure has been expanded. Due to Eritrea's relative isolation, information and resources are extremely limited and according to the World Health Organisation (WHO) found in 2008 average life expectancy to be slightly less than 63 years. Immunisation and child nutrition has been tackled by working closely with schools in a multi-sectoral approach; the number of children vaccinated against measles almost doubled in seven years, from 40.7% to 78.5% and the underweight prevalence among children decreased by 12% in 1995–2002 (severe underweight prevalence by 28%). The National Malaria Protection Unit of the Ministry of Health has registered tremendous improvements in reducing malarial mortality by as much as 85% and the number of cases by 92% between 1998 and 2006. The Eritrean government has banned female genital mutilation (FGM), saying the practice was painful and put women at risk of life-threatening health problems.
What was the Eritrean life expectancy at birth in 1960?
A:
39.1