定义旋转阳极 X 线管的代表容量时,整流方式规定为
D
暂无解析
句子写作:Iwasveryembarrassed.Ididn’tknowwhatIshoulddo.
Americanseat______vegetablesperpersontodayastheydidin1910.
Shehasnohostilitytous,_____canbejudgedfromhereyes。
Hisintelligencewill________himtogetascholarshiptocollege.
2岁内小儿心尖搏动的位置是()