Afterdrivingforthirtymiles,Marysuddenlyrealizedthatshe____________inthewrongdirection.(had been driving, have been driving)
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Shesaidshe____________ toseemewhenshehad finished herwork.(would come, would have come)
Iwasunhappybecausehe____________ faultwithwhateverIdid.(was foreverfinding, is foreverfinding)
游标卡尺有三种分度值,10分度、20分度和50分度。这三种不同的游标卡尺分别将1mm分成10份、20份和50份。请问,它们最小的分度值是多少?mm、mm和mm。
20分度游标卡尺读出数据时,最后一位数字一定是。
A. 偶数
B. 奇数
C. 0或5
D. 0-9都可以