下列不属于法国总统与美国总统相似之处的是                       

A．总统掌握行 * *

B．总统由议会选举产生

C．总统既是国家元首又是军队统帅

D．总统有固定任期

Peter took advantage________ his visit to Paris to improve his French.

A．on

B．at

C．with

D．of