企业债券的种类有很多，按照还本付息的期限可分为( )。

A．短期企业债券

B．中期企业债券

C．记名企业债券

D．长期企业债券

E．不记名企业债券

At first the man refused to say anything but _____ when shown the evidence he and told everything. [      ]

A. broke down

B. broke out

C. gave up

D. gave away