_______ is believed, all the scientists subscribe to the view ______ the increas

题型：不详难度：来源：

_______ is believed, all the scientists subscribe to the view ______ the increase in the earth’s temperature is due to the burning of fossil fuels to produce energy.

A．It;

B．As ; that

C．It; if

D．As; whether

答案

B

解析

第一空考查由As 引导的非限制性定语从句，As 正如，第二空是同位语从句，that后的从句解释前面的名词the view，所以选B。