[问答题]------------.
[问答题]----------.
[单选题]A.1B.-1C.2D.
[单选题]A.B.C.D.
[单选题]A.有极限的函数B.有界函数C.无穷小量D.比(x-a)高阶的无穷小
[单选题]A.0~0.2VB.0.2~0.4VC.0.4~0.8VD.0.8~1.2VE.1.2~1.6V