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十万火急 请简述 溴化容量法测定水中挥发酚的方法原理自己查到了蒸馏后溴化容量法是一种测定水中挥发酚的方法.其原理是：用蒸馏法使挥发性酚类化合物蒸馏出来,并与干扰物质和固定剂 水中挥发酚的测定 ,当预蒸馏两次,馏出液仍浑浊时如何处理? 图中电压表有没有示数?如果有是不是电源电压? 如图,在这种情况下,电压表的示数是不是电源电压?还有电流表有没有示数?说明原因。 哪种单细胞生物身体仅由细胞壁,细胞核,叶绿体和大液泡构成 如图,若电源两端电压为10伏,请问各电压表的示数（各电压表规格相同） After a short rest,the man was .enough to go home.应填good还是well? 如图17所示电路中,电源电压U恒定,当滑动变阻器的滑片P在中点时,电压表的示数为3伏,滑到右端时,电压表示数为4.5伏特,求电源电压U After three days' careful treatment ,the old man was ___ to go home.A enough good B good enoughC well enough D enough well, Giving up doesn't mean you're weak,sometimes it means you're strong enough to let go. man enough to the old man was l____ enough to stand up 玻璃钢的透明性为什么不如普通玻璃?如题. 我想做透明玻璃钢怎么样才能做透明呢?要用什么原料呢? The one with money got such a fright that he dropped the bag.这句怎么翻译 the one with the money got such a fright that he droped the bag. got a fright是固定搭配吗?总觉得fright加a有点变扭··· i got a fright 这样用法有么? The one with the money got such a fright that he dropped the bag,这句话中的got是什么用法 The one with money got such a fright that he dropped the bag中with是什么成分? the one with the money got such a fright that he …这儿为什么要用such a fright这样的方式来表示害怕啊 针对什么 的实际情况组织制定灭火和应急疏散预案,并实施演练 中频炉如何脱硫 挥发酚蒸馏出后液体问为什么是黄色 中频炉炼钢怎么脱硫?钢材要求不高,最好时低成本的.详细点.解决的好的话加分. I don't mind helping to carry these things to your home.( ),the walk will do me good.A\However B\Still C\Besides D\Instead没碰到过 I don't mind helping to carry these things to your home.(besides),the walk will do me good.I don't mind helping to carry these things to your home.( besides),the walk will do me good.为什么不能用 instead（instead含“相反”之意）在句 do you mind helping me carry the books upstairs?的应答句 是yes,please.还是not at all. Do you mind __ alone at home?A Jane leaving B Jane having left C Jane's being left D Jane to be left 为什么不是c或其他选项? 请教这种表情的名字!如题 有的生物为兼性厌氧型,当有氧呼吸和无氧呼吸同时进行时,耗氧量为1mol 时,产生的二氧化碳是否一定也为1mol有的生物为兼性厌氧型,当有氧呼吸和无氧呼吸同时进行时,耗氧量为1mol时,产生的二 They did very well in the competition!(以how引导的感叹句） 我要现实英文店名,最好是在外国 ,香港,一些特色的英文,我想开一个鞋店, 帮我取个英文店名.网店里是卖旅行拉杆箱,和日用小商品的,不想取个针对性的名字,要简单又脱离大众的,不知道里面有“薇”的字义可不可以取到一个好听的.谢谢大家,帮到我的人以后光临小