关于A02.的百科

• 设抛物线y2＝2px(p＞0)的焦点为F，点A(0,2)．若线段FA的中点B在抛物线上，则B到该抛物线准线的距...

• 问题详情：设抛物线y2＝2px(p＞0)的焦点为F，点A(0,2)．若线段FA的中点B在抛物线上，则B到该抛物线准线的距离为________．【回答】知识点：圆锥曲线与方程题型：填空题...
• 2021-10-107513

• A02造句怎么写

• ReversingMDRofK562/A02CellLinebyCurcuminandErythromycin;StudyonReversalMechanismofMultidrugResistanceinK562/A02CellLinebyNeferineandErythromycin;EffectofPhenylhexylIsothiocyanateonAdriamycinResistanceofK562/A02CellLineMechanismoftetrandrineinreversio...
• 2020-11-137786

• 已知10b1(2)=a02(3),则a+b的值为(　　)A.0   B.1      C.2   D.3

• 问题详情：已知10b1(2)=a02(3),则a+b的值为()A.0   B.1      C.2   D.3【回答】C【解析】10b1(2)=1×23+b×2+1=2b+9,a02(3)=a×32+2=9a+2,∴2b+9=9a+2,即9a-2b=7.∵a∈{1,2},b∈{0,1},∴当a=1,b=1时符合题意,当a=2,时不合题意,∴a=1,b=1,得a+b=2,故选C.知识点...
• 2019-07-056574