在电路中,将两个及以上的电阻的一端全部联接在一点上,而另一端全部连接在另一点上,这样的联接称为电阻的() 。
A 并联
B 串联
C 混联
查看答案
?The following doughnut chart shows the numbers of cars with varying number of occupants before and after a Share-a-Ride program according to a survey implemented by the Plant Security Department on two Thursdays.
?Using the information from the chart, write a report assessing the effectiveness of the program.
?Write 120--140 words on your Answer Sheet.
若电源电动势为 E ,通过电源的电流为I ,则电源电动势的电功率为() 。
A P=EI
B P=EI2
C P=E/I
十八大以来,我们坚持适应把握引领经济发展新常态,立足大局,把握规律。()