如图所示是电表中的指针和电磁阻尼器,下列说法中正确的是( )
A:2是磁铁,在1中产生涡流;该装置使指针能够转动
B:1是磁铁,在2中产生涡流;该装置使指针能很快地稳定
C:1是磁铁,在2中产生涡流;该装置使指针能够转动
D:2是磁铁,在1中产生涡流;该装置使指针能很快地稳定
My name is Jim. I am a student. At school, I have a good friend. His name is Mike. He is tall. He has short hair. We are classmates, too. We go to school at 7:00 o'clock. We go home at 5:00. It's 3:15 now. It's time to play games. Let's go to the playground. We play football with some boys. Jim and Mike are 。
乐乐在QQ聊天时说自己的家乡在海南,你觉得下列哪一项最符合乐乐家乡的特征( )
2010年8月,贵阳市规划局公示城市轻轨1号线全长31.9公里车站23座,从点金阳新区到小河区的工程设计方案,听取社会意见和建议。这表明规划局( )
在用显微镜观察人的口腔上皮细胞的实验中,下列说法正确的是( )