吸光度值与试液浓度减去参比溶液浓度所得的差值成正比的方法是指（）。_高级油品分析工考试_全学科试题题库

当前学科：高级油品分析工考试

题目：单选
吸光度值与试液浓度减去参比溶液浓度所得的差值成正比的方法是指（）。
答案： <查看本题扣1积分>

查看答案

答案不对？请尝试站内搜索

推荐知识点:

大肠的募穴所属的经脉是（）

加热炉定期吹灰是为了（）。

男性，61岁，吸烟史20年，8年前因声音嘶哑，当地医院发现喉部一分支的乳头状肿物，手术取出。病理检查见乳头基底膜完整，局部鳞状上皮细胞呈乳头状增生，细胞层次多，但无异型性，乳头中心为含血管的纤维结缔组织，乳头基底膜完整。近3个月，再次出现声音嘶哑并伴有疼痛，喉镜检查发现，假声带以上有一隆起肿物，呈乳头状分支，表面糜烂。肿物切除后病理观察见：局部上皮细胞异型增生，并突破基底膜，在间质内有数个鳞状细胞巢团，巢团内多有角化物，细胞有异型性，可见病理性核分裂象。目前的病理诊断应是（）

Camping Camping wild is a wonderful way to experience the natural world and， at its best， it makes little environmental influence. But with increasing numbers of people wanting to escape into the wilderness， it is becoming more and more important to camp unobtrusively （不引人注目地） and leave no mark. Wild camping is not permitted in many places， particularly in crowded lowland Britain. Wherever you are， find out about organizations responsible for managing wild spaces， and contact them to find out their policy on camping and shelter building. For example， it is fine to camp wild in remote parts of Scotland， but in England you must ask the landowner's permission， except in national parks. Camping is about having relaxation， sleeping outdoors， experiencing bad weather， and making do without modern conveniences. A busy， fully-equipped campsite （野营地） seems to go against this， so seek out smaller， more remote places with easy access to open spaces and perhaps beaches. Better still， find a campsite with no road access： walking in makes a real adventure. Finding the right spot to camp is the first step to guaranteeing a good night's sleep. Choose a campsite with privacy and minimum influence on others and the environment. Try to use an area where people have obviously camped before rather than creating a new spot. When camping in woodland， a void standing dead trees， which may fall on a windy night. Avoid animal runs and caves， and possible homes of biting insects. Make sure you have most protection on the windward side. If you make a fire， do so downwind of your shelter， always consider what influence you might have on the natural world. Avoid damaging plants. A good campsite is found， not made — changing it should be unnecessary. ometimes you need to make electricity.（）

下列哪些信用卡产品是需要收取工本费的（）

个人循环赛每场（）剑，采用净（）分钟记时。先击中（）剑者获胜，没有差额。双方比分相等时，抽签获取优先权，随后加时一分钟决一剑。

一级种

时尚最为常见的初始形态是：（）

男性，19岁，大学新生。患者自幼父母溺爱，从未离开过父母，生活自理能力较差。2012年远离家乡去某大学就读。入学初期，患者生活自理能力差，军训时动作慢。约2周后，患者哭着给家人打电话，说不想读书了，要求转学回家乡。经家人及辅导员劝说后勉强坚持学习，但同学发现患者经常不吃早餐，喜欢卧床。不修边幅，活动减少，不与人交谈，有时旷课，有时独自流泪。检查发现，患者交谈切题，自诉心情不好，不想学习，诉饭菜不好吃，住房条件又不好，因此想回家，想父母。觉得注意力难以集中，头脑昏昏沉沉。食欲差。诉从没有过自杀念头。该患者目前最可能的诊断是（）

通用车轴油的凝点不高于（）度。