There is a dark side to the dependence on fossil fuels and nuclear power for our energy needs. (Para. 2) fossil fuels: 1) their supply is ____; 2) they cause health and ____. nuclear power: nuclear power is ____ when all costs are considered; ____ could happen; ____ can be used improperly to cause damage.
发布时间:2024-07-02 08:08:33