It is reported that the United States uses_________ energy as the whole of Europe.

A．twice as

B．twice as much

C．twice as many

D．much twice as

人民法院在审理涉外经济合同案件时，如果要适用外国法律，需要查明有关外国法律的内容时，可以通过下列途径( )。

A．由当事人提供

B．由我国驻该国使、领馆提供

C．由该国驻华使、领馆提供

D．由中外法律专家提供