解析 14.【答案】(1)0.3 (2)2 (3)10-10 【解析】(1)因为1ms=10-3s,所以300ms=300×10-3s=0.3 s; (2)因为1min=60s=60×106μs=6×107μs, 所以1.2×108μs=1.2×108×min=2min (3)因为1μs=10-9s,1s=h; 所以360μs=360×10-9×h=10-10h...