A.宇宙中的中心天体
B.宇宙中离地球最近的恒星
C.宇宙中质量最大的恒星
D.宇宙中唯一辐射光热的恒星
答案:B
规格为1210的貼片电阻长宽尺寸是()。
A.长3mn、宽3.2mm
B.长5.0mm、宽2.5mm
C.长3.2mm、宽2.5mm
D.长3.2mm、宽1.6mm
Erica has $460 in 5-and 10-dollar bills only. If she has fewer 10-than 5-dollar bills, what is the least possible number of 5-dollar bills she could have ?()
A.32
B.30
C.29
D.28
E.27