标有“220 V 100 W”的灯泡,正常发光1 min产生 J的热量,1度电可供它正常工作 h。
6×103 10
创意思维的基本方法有发散思维法、垂直思维法、横向思维法三种。
People often watch their favourite sports on ______ TV or listen to them on ______ radio. [ ]
A. the, the
B. the, ×
C. ×, the
D. ×, ×