Amy and her family ____ over the winter holiday.Hainan is ____ their home, so they went there ____. Sanya is a good place to visit. The weather is ____. The ____ is beautiful. Amy took lotsof pictures there. She ____ in the sea, too.
“嫦娥一号”发射成功。其主要任务之一是探测月球上的氦(He—3),其原子核内的质子数为2,中子数为1,每一百吨氦(He—3)核聚变释放的能量相当于目前人类一年消耗的能量。下列关于氦(He—3)元素的说法正确的是( )
如图所示,电流表的示数为____ A,电压表的示数为____ V.