“全称肯定判断真”与“特称肯定判断真”前者对后者之间（     ）。

A．不具有条件关系

B．具有必要条件关系

C．具有充分条件关系

D．具有充分必要条件关系

_____you don’t lose heart, it will be easy for you to overcome the difficulties.

A．As well as

B．So long as

C．So far as

D．As soon as