为什么过度加热灭菌会使培养基的色泽变深,有什么害处?

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问题:

为什么过度加热灭菌会使培养基的色泽变深,有什么害处?

考点:医疗卫生知识抗生素生产发酵抗生素生产发酵题库
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B Customs of Bulgaria: Marriage and Family保加利亚习俗:婚姻与家庭
The average age for women to marry is between 18 and 25.25 tend to (1) when somewhat older. A church wedding often (2) the legal civil ceremony, and a large reception, which often involves (3) music and dancing, is held in the evening. Wedding traditions include (4) money on the bride’s dress to represent future prosperity, the groom (5) the bride at her home, and the couple pulling on opposite (6) of a loaf of bread—whoever gets the largest piece will be (7) boss of the family. Honeymoons are a new tradition.
The principle (8) mutual support is valued in the Bulgarian family. The elderly are (9) cared for by their adult children. Unmarried adults live with their (10) and many newly married couples live with one set of parents (11) they are able to get housing of their own. Most families (12) urban areas live in apartments, which are in short
supply, while (13) in rural areas usually have their own houses. Many village houses (14) owned by families who live in urban areas, who use them_ (15) summer and weekend retreats, or for retired parents.
Most families in (16) areas do not have more than two children, while families in (17) areas tend to be larger. Grandparents play an important role in (18) care, particularly in urban areas, where most women work outside the (19) . Men of the younger generation have begun to help with household (20) , once considered only women’s responsibility.

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建筑高度不超过32m的二类高层公共建筑当其楼梯间无自然采光和自然通风时,应设()或室外疏散楼梯。(中)

A、开敞楼梯间

B、敞开楼梯间

C、封闭楼梯间

D、防烟楼梯间

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通常根据《地面水环境质量标准》将水体划分为5类,其中属于水污染防治特殊控制区的是()。

A.Ⅰ类

B.Ⅱ类

C.Ⅲ类

D.Ⅳ类

E.Ⅴ类

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男,60岁,因持续畏寒、发热15天入院,伴有头痛、关节痛。入院时体格检查:T39℃,BP100/70mmHg;神清合作,未见皮疹;心率105次/分,律齐,未闻及杂音;右下肺可闻及湿啰音,腹平软;肝右肋下1.5cm,质软,有触痛;脾左肋下2.0cm,质软,边锐,有触痛。血常规:WBC18×109/L,N0.89。胸片:右下肺发现浸润性病灶。

准备为上述病例做的下列进一步检查中,哪项的诊断意义最大()

A.胸部X线检查

B.肥达反应

C.骨髓涂片

D.血培养

E.痰菌培养

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工会对违反《工会法》规定,侵犯其合法权益的行为,有权提请人民政府或者相关部门予以处理,或者向人民法院提起诉讼。

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