【单选题】对于低温下的核自旋系统,把磁场突然反向后将出现( )
【简答题】The two hemispheres of your brain are in constant communication with one another via the ( ), a structure made up of about 200 million ( ).
【单选题】The two hemispheres of your brain are in constant conmmunication with one another via the ( ).
【单选题】The two hemispheres are connected by _____