我的家乡吉林市所处的温度带为( )
A:寒温带
B:中温带
C:暖温带
D:亚热带
下列描述电场的物理量中哪些与试探电荷有关 ( )
—How many ________ are there on the table?
—Three. Are you thirsty? Let's cut one and eat it.
如图所示,小明同学在倒置的漏斗里放一个乒乓球,用手指托住乒乓球,然后从漏斗口向下用力吹气,并将手指移开,结果发现乒乓球不会下落。下列对其分析正确的是()
Let's blue and yellow.