传感器按被测量分类可分为位移传感器、力传感器、温度传感器等，按传感器工作原理分类，可分为机械式、电气式、光学式、流体式等。
1、正确正确
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______hardworkitis!
She’swornhisdesignson__________occasionsfromredcarpetstomoviepremieres.
Underthis（）pressuresomeoftherocksevenbecameliquid.
Writing:
Somepeopleclaimthat,intheageoftelevision,readingbooksisnotasimportantasitoncewasandthatpeoplecanlearnasmuchbywatchingtelevisionastheycanbyreadingbooks.Doyouagreeordisagreewiththisstatement?Writeanessayofabout400words.
Inthefirstpartofyouressayyoushouldstateclearlyyourmainargument,andinthesecondpartyoushouldsupportyourargumentwithappropriatedetails.Inthelastpartyoushouldbringwhatyouhavewrittentoanaturalconclusionormakeasummary.
Youshouldsupplyanappropriatetitleforyouressay.
Markswillbeawardedforcontent,organization,grammarandappropriateness.Failuretofollowtheaboveinstructionsmayresultinalossofmarks.
The（） inJanet‘scharacterhashinderedherfroomadvancementinhercareer.
