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【单选题】
某台运行BGP协议的路由器收到一条BGP路由后，如果发现自己的AS号出现在AS-Path里(该路由的其它属性正确)，则()。A.
丢弃该路由
B.
该路由按照正常的路由来处理
C.
将AS-Path中自己的AS号去掉后，按照正常的路由来处理
D.
丢弃该路由，并发送Notification报文通知发送该条路由的邻居
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【简答题】查表确定¢30P7孔的上下偏差:上偏差为 ,下偏差为 。(mm为单位) 查表确定¢30f7轴的上下偏差:上偏差为 ,下偏差为 。
【单选题】My pain _____ obvious the moment I entered the office，for the first man I met asked pitifully，“Are you feeling all right？”
A.
could be
B.
could have been
C.
must be
D.
must have been
【单选题】It was obvious that the team ______
A.
had met with Israeli objections
B.
had already proceeded to the mission
C.
had already been sent to the area
D.
would have to abandon their efforts
【简答题】已知某基准轴的公差为 0.013mm ,则它的下偏差为 mm ,上偏差为 mm 。
【单选题】My pain ______ obvious the moment I walked into the room, for the first man I met asked me pitifully, 'Are you feeling all right?'
A.
must be
B.
could be
C.
must have been
D.
could have been
【多选题】牛顿环干涉也是等厚干涉，为什么它的干涉条纹是不等间距的环形条纹而不是等间距的平行直线（ ）
A.
因空气厚度相等点的轨迹是环形
B.
因平凸透镜曲面上各点的斜率不等
C.
因各环对应的空气厚度不等
D.
因平凸透镜的折射率不同
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