下列四地中,符合北半球、东半球、低纬度三个条件的点是( )
A:10°E,28°N
B:21°W,20°S
C:170°E,20°S
D:150°W,32°N
— Because I just want to join my husband's company and give him support.
下列有关发达国家和发展中国家的叙述,正确的是( )
一个灯泡标有“220V,40W”字样,当把它接到110V的电路上时,它的实际电功率是()