将数据56000用科学记数法应表示为( )
A.5.6×103
B.5.6×104
C.5.6×105
D.0.56×105
将56000用科学记数法表示为:5.6×104.
故选:B.
--Mary’s crying sadly in her room. Why must you say so to her?
--I know I’ve hurt her, but it wasn’t my .
A.opinion
B.intention
C.consideration
D.decision
哪种消毒液使用期最长
A.酒精
B.戊二醛
C.碘伏
D.过氧乙酸溶液
E.次氯酸钠溶液