题目内容 (请给出正确答案)
提问人:网友c********1 发布时间:2023年3月31日 23:36
[单项选择题]

在低温阻氧措施下可以保存一到二年的方法是()

A、冰箱保存法

B、石蜡油封藏法

C、甘油悬液保藏法

D、冷冻干燥保藏法

参考答案
十点题库官方参考答案 (由十点题库聘请的专业题库老师提供的解答)
更多“在低温阻氧措施下可以保存一到二年的方法是()”相关的问题
人体实验中应把什么放在首位(  )。
A.社会利益 B.科学利益 C.实验者利益 D.受试者利益 E.医院利益
点击查看答案
下列作品中与作者及所处的朝代对应不正确的有:
A.《淮南子》——刘安—一春秋. B.《秋声赋》-柳宗元——唐代‘ C.《容斋随笔》——洪迈—一明代 D.《游子吟》—一孟郊—一唐代
点击查看答案
卧床患者的头发已纠集成团,可使用酒精溶液湿润,其浓度为
A.20%
B.30%
C.50%
D.75%
E.95%
点击查看答案
集团远程安全监控系统值班查岗功能需要实现哪些功能()
A.收到远程监控中心发出的“值班检查”指令时,远程传输设备须立即声光提醒
B.在规定的时间内操作“应答”键,远程监控系统视为“在岗”,否则为“脱岗”
C.实时接受各地广场,酒店等自持物业远程传输设备上穿的信息,并对信息进行复核监控
D.可对测试报备的各地广场,酒店等自持物业的消防信息上传模式设定为测试模式
点击查看答案
土地使用权租赁合同的最长期限为20年。
A.对 B.错
点击查看答案
省委将产业集聚区的基本特征归结为三个方面,分别是五规合一、产城互动、四集一转。
点击查看答案
除皱术中辅助操作技术有()
A.应用皮肤扩张器 B.吸脂术 C.局部假体充填术 D.颊脂肪垫切除术 E.颧脂肪垫悬吊技术
点击查看答案
内燃机是将液体或固态燃料()的的装置
A.化学能转化为机械能
B.机械能转化为化学能
C.热能转化为电能
D.机械能转化为电能
点击查看答案
Set 2Mediterranean Diet The Mediterranean diet is based upon the eating patterns of traditional cultures in the Mediterranean region. Several noted nutritionists and research projects have concluded that this diet is one of the most healthful in the world in terms of preventing such illnesses as heart disease and cancer, and increasing life expectancy. The countries that have inspired the Mediterranean diet all surround the Mediterranean Sea. These cultures have eating habits that developed over thousands of years. In Europe, parts of Italy, Greece, Portugal, Spain, and southern France adhere to principles of the Mediterranean diet, as do Morocco and Tunisia in North Africa. Parts of the Balkan region and Turkey follow the diet, as well as Middle Eastern countries like Lebanon and Syria. The Mediterranean region is warm and sunny, and produces large supplies of fresh fruits and vegetables almost year round that people eat many times per day. Wine, bread, olive oil, nuts, and legumes are other staples of the region, and the Mediterranean Sea has historically yielded abundant quantities of fish. International interest in the therapeutic qualities of the Mediterranean diet began back in the late 1950s, when medical researchers started to link the occurrence of heart disease with diet. Dr. Ancel Keys performed an epidemiological analysis of diets around the world (epidemiology being the branch of public health that studies patterns of diseases and their potential causes among populations). Entitled the Seven Countries Study, it is considered as one of the greatest studies of its kind ever performed. In it, Keys gathered data on heart disease and its potential causes from nearly 13,000 men in Greece, Italy, Croatia, Serbia, Japan, Finland, the Netherlands, and the United States. it concluded that the Mediterranean people in the study enjoyed some significant health advantages. The Mediterranean groups had lower mortality rates in all age brackets and from all causes, particularly from heart disease. The study also showed that the Mediterranean diet is as high or higher in fat than other diets, obtaining up to 40 percent of all its calories from fat. It has, however, different patterns of fat intake. Mediterranean cooking uses smaller amounts of saturated fat and higher amounts of unsaturated fat, mostly in the form of olive oil. Saturated fats are fats that are found principally in meat and dairy products, although avocados, some nuts, and some vegetable oils also contain them. Saturated fats are used by the body to make cholesterol, and high levels of cholesterol have since been directly related to heart disease. Several other studies have validated Keys’ findings regarding the good health to people in Mediterranean countries. The World Health Organization (WHO) showed in a 1990 analysis that four major Mediterranean countries (Spain, Greece, France, and Italy) have longer life expectancies and lower rates of heart disease and cancer than other European countries and America. The data are significant because the same Mediterraneans frequently smoke and don’t have regular exercise programs like many Americans, which means that other variables may be responsible. Scientists have also ruled out genetic differences, because Mediterraneans who move to other countries tend to lose their health advantages. These findings suggest that diet and lifestyle are major factors. The Mediterranean diet gained even more notice when Dr. Walter Willett, head of the nutrition department at Harvard University, began to recommend it. Although low-fat diets were recommended for sufferers of heart disease, group of Mediterraneans in his studies had very high intakes of fat, mainly from olive oil. Willett and others proposed that the risk of heart disease can be reduced by increasing one type of dietary fat--monounsaturated fat--the type found in olive oil. Willett’s proposal went against conventional nutritional recommendations to reduce all fat in the diet. It has been shown that unsaturated fats raise the level of HDL cholesterol, which is sometimes called "good cholesterol" because of its protective effect against heart disease. Willett has also performed studies correlating the intake of meat with heart disease and cancer.
A.red meat and wine.B.fruits and vegetables.C.nuts and olive oil.D.fish and dairy products.
点击查看答案
国家标准规定,未注公差尺寸的公差等级为()。
点击查看答案
给排水工程中管道法兰连接时,最常用的法兰是()
A . A、平焊法兰
B . B、铸铁法兰
C . C、松套法兰
D . D、对焊法兰
点击查看答案

Section C

Directions: In this section you will hear a recorded short passage. The passage is printed in the test paper, but with some words or phrases missing. The passage will be read two times. You are required to put the missing words or phrases on the Answer Sheet in order of the numbered blanks according to what you hear. Now listen to the passage.

How great it is to see so many of you come and join us in celebrating the 15th anniversary of our travel magazine. From the bottom of ___11____ , we thank you for being here. a little more than fifteen years ago, we were sitting at our regular jobs, 12 how we saw our future, when we came up wiht the idea of joing our two hobbies, traveling and writing. We never imagined that our tiny dream would 13 so soon. There we many special people who joined us and made it 14 to create the name that we have today. To all those people and those who joined us in our journey, I should say thank you again. 15 we would never have been here.

点击查看答案
已知数列前n项和,求其通项公式an.
点击查看答案
5G重要的三类商业模式是()。
A.服务型
B.运营型
C.标准型
D.集成型
点击查看答案
涡阳县法制广场位于()。
A.西环路与乐行路交叉口
B.西环路与站前路交叉口
C.紫光大道与东环路交叉
点击查看答案
客服
TOP