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
网友回答
A. It; \
(答案→)B. As ; that
C. It; if
D. As; whether
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。