瓶阀冻结时禁止用火烘烤,可用浸()℃热水的棉布盖上使其缓慢解冻。
A.40
B.45
C.50
D.55
参考答案:A
阅读下面这首诗,然后回答问题。
杜甫
西山白雪三城戍②,南浦清江万里桥。
海内风尘诸弟隔,天涯涕泪一身遥。
惟将迟暮供多病,未有涓埃答圣朝。
跨马出郊时极目,不堪人事日萧条。
[注]①这首诗作于上元二年(761)成都草堂。②三城戍:当时因受吐蕃侵扰,曾在松、维、堡三城设戍。
(1)“海内风尘诸弟隔”一句中运用了哪种修辞手法?请作简要说明。
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(2)这首诗以“野望”为题,请简析全诗是如何扣住“望”来写的。
(3)这首诗情感丰富,请作具体分析。
Open Shortest Path First(OSPF)is a (72) routing algorithm that (73) work done on theOSI IS-IS intradomain routing protocol. This routing, as compared to distance-vector routing,requires (74) processing power. The (75) algorithm is used to calculate mutes. OSPFrouting table updates only take place when necessary, (76) at regular intervals.
A.derived from B.deviated from C.was derived from D.was deviated from