A．To encourage big businesses to hire back workers with government subsidies．
B．To create more jobs by encouraging private investments in local companies．
C．To allow them to postpone their monthly mortgage payments．
D．To offer them loans they need to start their own businesses．
A．They investigated the ice．
B．They analyzed the water content．
C．They explored the ocean floor．
D．They measured the depths of sea water．
A．The ice decrease is more evident than previously thought．
B．The ice ensures the survival of many endangered species．
C．Most of the ice was accumulated over the past centuries．
D．Eighty percent of the ice disappears in summer time．