Just as Professor Scotti often______  it, success is ninety-nine percent mental attitude.

A．gets

B．makes

C．puts

D．means

最常见的阵发性室上速的类型是（）.

A.房内折返性心动过速

B.窦房折返性心动过速

C.房室折返性心动过速

D.房室结内折性心动过速

E.以上都不是