单项选择题A．they are sources of huge revenuesB．they may fail to survive foreign competitionC．they are new industriesD．they are supported by the government

单项选择题A．young ageB．his attitude on Iraq warC．lack of experience in international affairsD．major disagreement with Kerry

单项选择题A．Because they lack parental love.B．Because they are too young.C．Because they commit serious crimes.D．Because they are homeless.

单项选择题A．industrial goodsB．agricultureC．service industriesD．tourism

单项选择题A．MassachusettsB．North CarolinaC．IowaD．South Dakota