接触网检修作业为什么必须严格执行工作票制度？
为了确保人身和设备安全， 接触网检修作业实行工作票制度。 工作票是进行接触网作业的书面依据，也是安全工作中的法律依据。因此接触网检修作业必须严格执行工作票制度。
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Thosepeople_____ageneralunderstandingofthepresentsituation.
______thepopularityofrobotsinJapan,thecountry’srobot-productiongrowthisslowingdown.
写信(40points)
Writealetteraccordingtothefollowingsituation:theWenchuanearthquakehasmadethiswinterextremelydifficultforthevictims.WritetotellyourfriendSmiththatyouareraisingmoneytobuy200piecesofcotton-paddedclothingandsomeothernecessitiesfortheearthquakevictims.Askhimtojointhecharityandshowyourappreciationsforhishelp.Don’tforgettotellhimyourphonenumber555-5555forfurtherdiscussion.PleasesignyournameasLiPing.(150-200words)