Joan’s mother thought it would be good for her character to      from home and earn some money on her own.

A．run away

B．take away

C．keep away

D．get away

外国债券的发行和担保是由发行所在国的（）承担的，并在该国的主要市场上发售。

A.中央银行

B.证券机构

C.商业银行

D.财政部