— I want to learn tennis. Would you like to help me?

—  _____. But learning tennis is no walk in the park. [ ]

A. No kidding

B. No wonder

C. No problem

D. No way

新生儿ABO血型不合是指

A．母亲为A型，婴儿是O型

B．母亲为B型，婴儿是O型

C．母亲为AB型，婴儿是A型

D．母亲为AB型，婴儿是B型

E．母亲为O型，婴儿是A或B型