Question

 (2011年長沙模擬)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：選B�？疾楦痹~辨析。necessarily必要地，必須地，必然地。句意：很顯然這款新型的數(shù)碼手機輻射較小，但是并不必然意味著我們在使用的過程中可以不加小心。obviously明顯地；generally一般，通常；eventually最終，最后，均不符合語境。