Question

 (2011年长沙模拟)It is definite that new digital mobile phones have less radiation，but that does not________mean that they should be used without caution.

A．obviously                     B．necessarily

C．generally                      D．eventually

Answer 1

解析：选B。考查副词辨析。necessarily必要地，必须地，必然地。句意：很显然这款新型的数码手机辐射较小，但是并不必然意味着我们在使用的过程中可以不加小心。obviously明显地；generally一般，通常；eventually最终，最后，均不符合语境。