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21.24h˱IJɼ
(1)7cſհV˺Һȫռһ坍(Ƀ̵)ճ7cһҺyӛڻ
(2)ȫ˱Ͼȡ20mlҵĘ˱ڝȱM͙z
(3)ijЩ⻯ҕwrӷ
22.RϳҊIJɫ׃Щ?
(1)Ѫɫ\cҺtĶPtrϴˮɫ
(2)ѪttѪ܃Ɖʝɫu͘ɫ
(3)đtSɫSɫʎҺĭҲSɫ
(4)ҺкܰҺɫ
(5)ēҺкēҺʰɫᲢҊēz
23.oʩЩ?
(1)ԭ
(2)Mg˽oTҪrڟoܺڵoАuϰ״̻Аuϰ쯛gð쯛ܵoͨ
(3)гѪһηɳ^1000ml׳Ѫ
24.ʧߵƤwoҪcЩ?
(1)ִƽ
(2)r坍ꎲƤw坍ˬҪrͿƤwo
(3)ȡıoʩԻ߿ɲŮԻ߿ɲ|
25.oˎrѭЩԭt?
(1)tҪʴ_oˎtɵtڑ˽ɽoˎäĿ
(2)“ߌ”ƶ
(3)ȫ_oˎսoˎrgˎúrְlʹoˎǰጲoˎָװl^ˎʹǰ˽^ʷ
(4)^ˎˎﯟЧ˲׃ˎهw
26.ڷoˎrעЩ?
(1)̷ˎͨ40-60_ˮҪòˮˎ
(2)иgõˎFԱoX
(3)ƬcƬz̷rɽ
(4)ºƬ»aĤcX֮gܻ
(5)ؼǰˎʕrˎԱCЧѪˎ
(6)ÌĤ𰲓õˎˮ
(7)ijЩǰˎ{IKųٕrYIСˎҪˮ
(8)һrθˎǰˎθĤд̼ˎˎ˯ǰ
27.ڷFίעЩ?
(1)pθcзС_ʼu
(2)ҺwFʹXȾܻιܷ֮
(3)FcSC;֭ͬ;cFյʳͬ
(4)F׃ڻʰͣ͘ˎ֏fԭ]
(5)̷ˎڏͲPҙz
28.õĿǻoҺĎN?к?
}ˮ坍ǻ픷Ⱦ;1%-3%^ҺmڿǻȾНM1%-4%̼cҺAҺmȾ0.02%ϴ̩Һ坍ǻVV0.02%Һ坍ǻVV0.1%ҺmھGēUȾ2%-3%nҺԷ־0.08%ҺmڅȾ
29.֞ĎN?m?
(1)͝60%mچμȱo̼Ļ˺ȾCķΏK֧A
(2)߉ָļӉœ2-3kg/ƽ“ĉo100%һ̼жԉľҵ
30.ע
(1)ҕ;(2)ֺͨ;(3)xmʽ;(4)עͼӜ;(5)rQմֹȾ͌ܶ;(6)Чur;(7)ֹըc
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