当今的核电站是通过____ (选填“重核裂变”或“轻核聚变”)来释放核能的,如图为核电站发电流程图,在核电站发电过程中,能量转化的先后顺序是:____ 能、内能、____ 能、电能.
下列措施中使蒸发减慢的是( )
读图,完成下列问题。
— The _____ of July is your birthday. What do you usually do?
— I usually help my mother with some housework because I want her to have a rest _____ that day.