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[主观题]

脱水培养基(dehydrated culture media)

脱水培养基(dehydrated culture media)

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更多“脱水培养基(dehydrated culture media)”相关的问题

第1题

微生物实验室使用的培养基可按处方配制,也可使用按处方生产的符合规定的脱水培养基,在制备培养基时,应选择质量符合要求的脱水培养基或按单独配方组分进行配制脱水培养基应附有()和(),配制时应按使用说明上的要求操作以确保培养基的质量符合要求,()或()的脱水培养基不得使用。
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第2题

脱水培养基配制后分装于适宜容器中,包装时塞子必须塞紧,以免松动或脱落造成染菌()
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第3题

People take salt tablets, which can lead a person to become dehydrated, to______.

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第4题

商品化脱水合成培养基的购买应有计划,遵循先购先用的原则、按照供应商提供的储存条件、有效期和使用方法进行保存(一般为避光干燥)和使用。()
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第5题

Since modern times, with the increasingly frequent international (), economic and cul

A.individuals

B.political

C.refers

D.analysis

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第6题

向原电池(-)ZnIZn2(1mol/L)lCu2(1mol/L)|Cul)的正极中加入浓氨水,则该电池的电动势将()。

A.增大

B.减小

C.不变

D.先减小后增大

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第7题

What is being offered to city residents?A.Advice for financial investmentsB.Tickets to cul

What is being offered to city residents?

A.Advice for financial investments

B.Tickets to cultural events

C.Discounts on computer software

D.Use of a recreational facility

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第8题

Task Sheet for Candidate A Task Sheet 1 A: The management: the importance of corporate cul

Task Sheet for Candidate A

Task Sheet 1

A: The management: the importance of corporate culture

B: Customer relations: how to get a customer coming back for more

C: Employee relations; how to tell the boss be is wrong

Task Sheet for Candidate B

Task Sheet 2

A: Recruitment; how to learn most about a job candidate.

B: Employee relations; how to fire a family member.

C: Leadership training: how to make a good boss.

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第9题

Large animals that inhabit the desert have evolved a number of adaptations for reducing th
e effects of extreme heat. One adaptation is to be light in color, and to reflect rather than absorb the Sun's rays. Desert mammals also depart from the normal mammalian practice of maintaining a constant body temperature. Instead of trying to keep down the body temperature deep inside the body, which would involve the expenditure of water and energy, desert mammals allow their temperatures to rise to what would normally be fever height, and temperatures as high as 46 degrees Celsius have been measured in Grant's gazelles. The overheated body then cools down during the cold desert night, and indeed the temperature may fall unusually low by dawn, as low as 34 degrees Celsius in the camel. This is an advantage since the heat of the first few hours of daylight is absorbed in warming up the body, and an excessive buildup of heat does not begin until well into the day.

Another strategy of large desert animals is to tolerate the loss of body water to a point that would be fatal for non-adapted animals. The camel can lose up to 30 percent of its body weight as water without harm to itself, whereas human beings die after losing only 12 to 13 percent of their body weight. An equally important adaptation is the ability to replenish (Sheik) this water loss at one drink. Desert animals can drink huge volumes in a short time, and camels have been known to imbibe (吸收) over 100 liters in a few minutes. A very dehydrated person, on the other hand, cannot drink enough water to rehydrate at one session, because the human stomach is not sufficiently big and because a too rapid dilution of the body fluids causes death from water intoxication. The tolerance of water loss is of obvious advantage in the desert, as animals do not have to remain near a water hole but can obtain food from grazing sparse pastures. Desert-adapted mammals have the further ability to feed normally when extremely dehydrated, it is a common experience in people that appetite is lost even under conditions of moderate thirst.

What is the passage mainly about?

A.Animals developed different strategies to survive.

B.Large animals can take strategies to reduce the effect of extreme heat.

C.Animals can tolerate the loss of body water.

D.A very dehydrated person can drink enough water to rehydrate.

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第10题

听力原文:There are different ideas about pets in different parts of the world. In most cul

听力原文: There are different ideas about pets in different parts of the world. In most cultures, animals have an inferior position to human beings. In some instances, however, people treat their pets like members of their families, or perhaps better. In the United States and Europe, where pets are very popular, there are special shops that sell jewelry, clothing and delicious food for cats and dogs. There are shops on fashionable streets in New York City, for example, that sell gold and diamond collars, fur jackets, and hats for pets.

In many countries of the world, there is special food for pets. It is common for supermarkets in many places to sell cat food and dog food. However, in Nice, France, there is a special restaurant for dogs.. Dogs are the only customers. There is seating for twenty dogs, On the menu, there is a variety of special tasty dishes for the dogs to choose.

Of course, in most parts of the world, pets don't live in wealth and luxury. There is a more practical and functional attitude toward pets. People own cats and dogs because they keep away mice and other unwanted animals. Certainly, owners generally have some affectionate feelings for their pets. However, they do not see them as equal to family members. Pets around the world live in a great variety of ways, just as people do.

(30)

A.Shops that take care of pets.

B.Shops that sell food and clothing for pets.

C.Shops that provide medical treatment for pets.

D.Shops that sell various pets

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