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当前学科：临床医学检验临床血液综合练习
题目：
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甲状旁腺素的主要功能在于升高血钙和降低血磷，其发挥作用的靶器官主要是（）。
A . 骨、肾上腺和小肠
B . 骨、肾小管和小肠
C . 骨、肝和小肠
D . 肝、肾上腺和小肠
E . 肝、肾上腺和骨
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推荐知识点:
下列应当适用民事诉讼法审理的案件有哪些（）
地球一小时在（）。
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.（）
（）是当代中国的最大国情、最大实际。
某市区欲安装250W高压钠灯作为道路照明，高压钠灯配用的镇流器功率为38W，为了提高功率因数，采用功率补偿。高压钠灯的功率因数补偿前为0．4，补偿后为0．9。给高压钠灯供电的照明变压器容量为100kVA，负载率按80％考虑，请对比该照明变压器在高压钠灯功率因数补偿前后供电情况。补偿前照明变压器输出的有功功率为（）。
患者，男，58岁。症见心悸，气促，动则尤甚，头晕，神疲乏力，咳喘，颧颊暗红，唇甲紫暗，夜寐不安。舌青紫，脉结。其治法是（）.
原始社会儿童教育活动内容：生产劳动教育、生活习俗教育、原始的宗教教育、原始的艺术教育、体格和（）。
房地产开发企业不得采取（）的方式销售商品房。
什么是综合运输体系？综合运输体系有哪几部分组成
变压器三相直流电阻不平衡（不平衡的系数大于2%）的原因是什么？怎样检查？