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求详细解答:ItisdefinitethatItisdefinitethatnewdigitalmobilephoneshavelessradiation,butthatdoesnotmeanthattheyshouldbeusedwithoutcaution.[]A.obviouslyB.necessarilyC.generallyD.eventually

题目详情
求详细解答:It is definite that
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

▼优质解答
答案和解析
B