一台断面200mm×1250mm单流铸机，平均拉速为0.9m/min，铸坯理论比重7.8t/m3，铸机平均作业率为85%，求该铸机的年产量多少？
解：G＝0.2×1.25×0.9×60×24×85%×7.8×365＝784063.8t
答：该铸机的年产量为784063.8t。
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Rock:______.
Sharon:Verywell,andtheexperimentisnearlyfinished.
Hearrived____London____acoldwinternight.
Hiscompanionshavethreatenedto__hiscrimestothepolice.
Allofusknow,color-blindpeopleoftenfinditdifficultto__betweenblueandgreen.
Writing：
Astatementgoesthat“onlythroughmistakescantherebediscoveryorprogress”.Towhatdegreedoyouagreewiththisstatement?Writeanessayofabout400words.
Inthefirstpartofyouressayyoushouldstateclearlyyourmainargument,andinthesecondpartyoushouldsupportyourargumentwithappropriatedetails.Inthelastpartyoushouldbringwhatyouhavewrittentoanaturalconclusionormakeasummary.
Youshouldsupplyanappropriatetitleforyouressay.
Markswillbeawardedforcontent,organization,grammarandappropriateness.Failuretofollowtheaboveinstructionsmayresultinalossofmarks.
