用户现场打不开网页,重新设置DNS无效,但是PINGDNS服务器地址是连通的,优先排查的故障点为()
A.电脑
B.modem
C.网线
D.网元
参考答案:A
We have every reason to believe that __________ 2012 London Olympics will be ________ great success.
A.a; /
B.the; /
C.the; a
D.a; a
男,32岁,十二指肠球部溃疡,8小时前出现呕血和排柏油样便,Bp70/50mmHg,P120次/分,Hb60g/L。应首选何种处理()
A.大量输液
B.内镜下电凝止血
C.补液输血
D.口服凝血酶
E.肌注立止血(巴曲酶)