- 問題詳情:下列説法正確的A.Th→Pa+X 中的X是中子B.+→+ 是α衰變C.+→+ 是核聚變D.→+2 是核裂變【回答】C知識點:核裂變與核聚變題型:選擇題...
- 16323
- 問題詳情:230Th和232Th是釷的兩種同位素,232Th可以轉化成233U。下列有關Th的説法正確的是A.Th元素的質量數是232 B.Th元素的相對原子質量是231C.232Th轉換成233U是化學變化 D.230Th和232Th的化學*質相同【回答】【*】D【解析】232Th 230Th的質量分別是232,230A項錯...
- 14206
- 問題詳情:―Whatdoyou thestory?―It’sboring. A.thinkof B.like C.getto D.tell【回答】A知識點:動詞和動詞短語題型:選擇題...
- 14299
- ATH=aluminatrihydrateStudyonPropertiesofABS/Nano-ATHCompositeStudyonpropertiesofHIPS/SMA/CG-ATHnano-compositeFlameproofroadsurfaceofopen-gradedasphaltfrictioncoursebasedonATHflame-retardingsystemFLASHCOMPUTATIONOFMULTICOMPONENTSYSTEMATHCOMPLEXREACTIO...
- 16803
- 問題詳情: Shesingssobeautifully!Ihaveneverheard . A.thebettervoice B.agoodvoice C.thebestvoice D.abettervoice【回答】D知識點:冠詞題型:選擇題...
- 29939
- 問題詳情:Myalarmclockdidn’tgooff,andIwokeuplatethismorning. A.Therewasnothingwrongwithmyalarmclock. B.Myalarmclockworkedwell. C.Nothingwaswrongwithmyalarmclock .thingwaswrongwithmyalarmclock.【回答】D知識點:相似相近詞比較題型:選擇題...
- 22114