如图是动物能量来源示意图，请据图回答问题：

⑴Do you like pears?____             A. I can see twelve.

⑵Where are you from?____          B. No, I don't.

⑶How many cars can you see?____   C. He's my father.

⑷Is it on your desk?____             D. I'm from Canada.

⑸Who is that man?____              E. Yes, it is.

已知点$M\left(a,b\right)\left(a>0,b>0\right)$是圆$C:x^2+y^2=1$内任意一点，点$P\left(x,y\right)$是圆上任意一点，则实数$ax+by-1$（   ）

如图所示，从双曲线－＝1(a>0，b>0)的左焦点F引圆x²＋y²＝a²的切线，切点为T，延长FT交双曲线右支于P点，若M为线段FP的中点，O为坐标原点，则|MO|－|MT|与b－a的大小关系为   (　　)