DT/CQT测评是一个综合性指标,分2G语音和3G数据两类,语音的MOS值=MOS值≥()的语音样本数/总的语音样本数
A.2.5
B.3
C.3.5
D.4
参考答案:B
普鲁卡因属于()
A.局麻药物
B.抗心律失常药物
C.抗肿瘤药物
D.抗病毒药物
E.抗真菌药物
-- Will you please help me with my English--( ).
A.Excuse me, I'm afraid not
B.It's very nice of you
C.I'm sorry to hear that
D.Certainly, I'll be glad to